204808000078 has 96 divisors (see below), whose sum is σ = 353352295296. Its totient is φ = 88235280000.

The previous prime is 204808000051. The next prime is 204808000079. The reversal of 204808000078 is 870000808402.

204808000078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

204808000078 is a nontrivial binomial coefficient, being equal to C(640013, 2).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204808000079) 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 47 ways as a sum of consecutive naturals, for example, 292165128 + ... + 292165828.

It is an arithmetic number, because the mean of its divisors is an integer number (3680753076).

Almost surely, 2^204808000078 is an apocalyptic number.

204808000078 is the 640012-nd triangular number.

204808000078 is the 213338-th centered nonagonal number.

204808000078 is a deficient number, since it is larger than the sum of its proper divisors (148544295218).

204808000078 is a wasteful number, since it uses less digits than its factorization.

204808000078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The spelling of 204808000078 in words is "two hundred four billion, eight hundred eight million, seventy-eight", and thus it is an aban number.