978685100204 has 48 divisors (see below), whose sum is σ = 2131437638400. Its totient is φ = 383658762816.

The previous prime is 978685100203. The next prime is 978685100269. The reversal of 978685100204 is 402001586879.

978685100204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×978685100204² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (978685100201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31702394 + ... + 31733249.

It is an arithmetic number, because the mean of its divisors is an integer number (44404950800).

Almost surely, 2^978685100204 is an apocalyptic number.

It is an amenable number.

978685100204 is an abundant number, since it is smaller than the sum of its proper divisors (1152752538196).

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

978685100204 is a wasteful number, since it uses less digits than its factorization.

978685100204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63435702 (or 63435700 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 978685100204 in words is "nine hundred seventy-eight billion, six hundred eighty-five million, one hundred thousand, two hundred four".