204279857878880 has 96 divisors (see below), whose sum is σ = 552161058785280. Its totient is φ = 69961926827520.

The previous prime is 204279857878849. The next prime is 204279857878931. The reversal of 204279857878880 is 88878758972402.

204279857878880 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 2×204279857878880² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99085460 + ... + 101126099.

It is an arithmetic number, because the mean of its divisors is an integer number (5751677695680).

Almost surely, 2^{204279857878880} is an apocalyptic number.

204279857878880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204279857878880 is an abundant number, since it is smaller than the sum of its proper divisors (347881200906400).

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

204279857878880 is a wasteful number, since it uses less digits than its factorization.

204279857878880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200212492 (or 200212484 counting only the distinct ones).

The product of its (nonzero) digits is 8092385280, while the sum is 83.

The spelling of 204279857878880 in words is "two hundred four trillion, two hundred seventy-nine billion, eight hundred fifty-seven million, eight hundred seventy-eight thousand, eight hundred eighty".