78608904100 has 36 divisors (see below), whose sum is σ = 176083952128. Its totient is φ = 30429252000.

The previous prime is 78608904083. The next prime is 78608904109. The reversal of 78608904100 is 140980687.

It is not an unprimeable number, because it can be changed into a prime (78608904109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12675756 + ... + 12681955.

Almost surely, 2^78608904100 is an apocalyptic number.

It is an amenable number.

78608904100 is an abundant number, since it is smaller than the sum of its proper divisors (97475048028).

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

78608904100 is a wasteful number, since it uses less digits than its factorization.

78608904100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25357756 (or 25357749 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 78608904100 in words is "seventy-eight billion, six hundred eight million, nine hundred four thousand, one hundred".