7661240267 has 2 divisors, whose sum is σ = 7661240268. Its totient is φ = 7661240266.

The previous prime is 7661240261. The next prime is 7661240309. The reversal of 7661240267 is 7620421667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7661240267 - 2⁶ = 7661240203 is a prime.

It is not a weakly prime, because it can be changed into another prime (7661240261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830620133 + 3830620134.

It is an arithmetic number, because the mean of its divisors is an integer number (3830620134).

Almost surely, 2^7661240267 is an apocalyptic number.

7661240267 is a deficient number, since it is larger than the sum of its proper divisors (1).

7661240267 is an equidigital number, since it uses as much as digits as its factorization.

7661240267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 7661240267 is about 87528.5111663622. The cubic root of 7661240267 is about 1971.3619094044.

The spelling of 7661240267 in words is "seven billion, six hundred sixty-one million, two hundred forty thousand, two hundred sixty-seven".