104651863020 has 72 divisors (see below), whose sum is σ = 318445558704. Its totient is φ = 27819113088.

The previous prime is 104651862989. The next prime is 104651863073. The reversal of 104651863020 is 20368156401.

It is a happy number.

104651863020 is a `hidden beast` number, since 1 + 0 + 4 + 6 + 5 + 18 + 630 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 859974 + ... + 974093.

It is an arithmetic number, because the mean of its divisors is an integer number (4422854982).

Almost surely, 2^104651863020 is an apocalyptic number.

104651863020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104651863020 is an abundant number, since it is smaller than the sum of its proper divisors (213793695684).

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

104651863020 is a wasteful number, since it uses less digits than its factorization.

104651863020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834399 (or 1834394 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 104651863020 in words is "one hundred four billion, six hundred fifty-one million, eight hundred sixty-three thousand, twenty".