73404681900 has 72 divisors (see below), whose sum is σ = 231691879104. Its totient is φ = 17795073600.

The previous prime is 73404681899. The next prime is 73404681913. The reversal of 73404681900 is 918640437.

It is a super-2 number, since 2×73404681900² (a number of 23 digits) contains 22 as substring.

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, 11118622 + ... + 11125221.

Almost surely, 2^73404681900 is an apocalyptic number.

It is an amenable number.

73404681900 is an abundant number, since it is smaller than the sum of its proper divisors (158287197204).

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

73404681900 is a wasteful number, since it uses less digits than its factorization.

73404681900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22243871 (or 22243864 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 73404681900 in words is "seventy-three billion, four hundred four million, six hundred eighty-one thousand, nine hundred".