7502651381 has 2 divisors, whose sum is σ = 7502651382. Its totient is φ = 7502651380.

The previous prime is 7502651339. The next prime is 7502651411. The reversal of 7502651381 is 1831562057.

7502651381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4351513156 + 3151138225 = 65966^2 + 56135^2 .

It is a cyclic number.

It is not a de Polignac number, because 7502651381 - 2¹⁰ = 7502650357 is a prime.

It is a super-2 number, since 2×7502651381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7502651311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3751325690 + 3751325691.

It is an arithmetic number, because the mean of its divisors is an integer number (3751325691).

Almost surely, 2^7502651381 is an apocalyptic number.

It is an amenable number.

7502651381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7502651381 is an equidigital number, since it uses as much as digits as its factorization.

7502651381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 7502651381 is about 86617.8467811340. The cubic root of 7502651381 is about 1957.6644557572.

The spelling of 7502651381 in words is "seven billion, five hundred two million, six hundred fifty-one thousand, three hundred eighty-one".