78999910004 has 12 divisors (see below), whose sum is σ = 140143676484. Its totient is φ = 38958859584.

The previous prime is 78999910001. The next prime is 78999910007. The reversal of 78999910004 is 40001999987.

It is an interprime number because it is at equal distance from previous prime (78999910001) and next prime (78999910007).

It can be written as a sum of positive squares in 2 ways, for example, as 67444090000 + 11555820004 = 259700^2 + 107498^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78999910001) 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, 135273527 + ... + 135274110.

It is an arithmetic number, because the mean of its divisors is an integer number (11678639707).

Almost surely, 2^78999910004 is an apocalyptic number.

It is an amenable number.

78999910004 is a deficient number, since it is larger than the sum of its proper divisors (61143766480).

78999910004 is a wasteful number, since it uses less digits than its factorization.

78999910004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270547714 (or 270547712 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 78999910004 in words is "seventy-eight billion, nine hundred ninety-nine million, nine hundred ten thousand, four".