79027178400 has 108 divisors (see below), whose sum is σ = 278669613222. Its totient is φ = 21073912320.

The previous prime is 79027178387. The next prime is 79027178407. The reversal of 79027178400 is 487172097.

It is a happy number.

79027178400 is a `hidden beast` number, since 79 + 0 + 2 + 7 + 178 + 400 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 53811008784 + 25216169616 = 231972^2 + 158796^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (79027178407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5480799 + ... + 5495198.

Almost surely, 2^79027178400 is an apocalyptic number.

It is an amenable number.

79027178400 is an abundant number, since it is smaller than the sum of its proper divisors (199642434822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79027178400 is a wasteful number, since it uses less digits than its factorization.

79027178400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10976023 (or 10976007 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 79027178400 in words is "seventy-nine billion, twenty-seven million, one hundred seventy-eight thousand, four hundred".