7248778427 has 8 divisors (see below), whose sum is σ = 8372920752. Its totient is φ = 6202163200.

The previous prime is 7248778387. The next prime is 7248778457.

7248778427 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7248778427 - 2¹⁴ = 7248762043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7248778457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19381574 + ... + 19381947.

It is an arithmetic number, because the mean of its divisors is an integer number (1046615094).

Almost surely, 2^7248778427 is an apocalyptic number.

7248778427 is a deficient number, since it is larger than the sum of its proper divisors (1124142325).

7248778427 is a wasteful number, since it uses less digits than its factorization.

7248778427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38763549.

The product of its digits is 9834496, while the sum is 56.

The square root of 7248778427 is about 85139.7582037910. The cubic root of 7248778427 is about 1935.3296117164.

The spelling of 7248778427 in words is "seven billion, two hundred forty-eight million, seven hundred seventy-eight thousand, four hundred twenty-seven".