79604404004 has 12 divisors (see below), whose sum is σ = 139338743964. Its totient is φ = 39793334304.

The previous prime is 79604404003. The next prime is 79604404013. The reversal of 79604404004 is 40040440697.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78261181504 + 1343222500 = 279752^2 + 36650^2 .

It is a super-2 number, since 2×79604404004² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79604404003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196707 + ... + 2232650.

It is an arithmetic number, because the mean of its divisors is an integer number (11611561997).

Almost surely, 2^79604404004 is an apocalyptic number.

It is an amenable number.

79604404004 is a deficient number, since it is larger than the sum of its proper divisors (59734339960).

79604404004 is a wasteful number, since it uses less digits than its factorization.

79604404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433854 (or 4433852 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 79604404004 in words is "seventy-nine billion, six hundred four million, four hundred four thousand, four".