7613431257 has 8 divisors (see below), whose sum is σ = 10154733376. Its totient is φ = 5073874992.

The previous prime is 7613431183. The next prime is 7613431261. The reversal of 7613431257 is 7521343167.

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

It is not a de Polignac number, because 7613431257 - 2⁷ = 7613431129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7613431297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426253 + ... + 443754.

It is an arithmetic number, because the mean of its divisors is an integer number (1269341672).

Almost surely, 2^7613431257 is an apocalyptic number.

It is an amenable number.

7613431257 is a deficient number, since it is larger than the sum of its proper divisors (2541302119).

7613431257 is a wasteful number, since it uses less digits than its factorization.

7613431257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872927.

The product of its digits is 105840, while the sum is 39.

The square root of 7613431257 is about 87254.9784081115. The cubic root of 7613431257 is about 1967.2526707837.

The spelling of 7613431257 in words is "seven billion, six hundred thirteen million, four hundred thirty-one thousand, two hundred fifty-seven".