79402500813 has 8 divisors (see below), whose sum is σ = 107210128000. Its totient is φ = 52264937088.

The previous prime is 79402500811. The next prime is 79402500833. The reversal of 79402500813 is 31800520497.

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

It is not a de Polignac number, because 79402500813 - 2¹ = 79402500811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79402500811) 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, 167515588 + ... + 167516061.

It is an arithmetic number, because the mean of its divisors is an integer number (13401266000).

Almost surely, 2^79402500813 is an apocalyptic number.

It is an amenable number.

79402500813 is a deficient number, since it is larger than the sum of its proper divisors (27807627187).

79402500813 is a wasteful number, since it uses less digits than its factorization.

79402500813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335031731.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 79402500813 in words is "seventy-nine billion, four hundred two million, five hundred thousand, eight hundred thirteen".