194387872924 has 24 divisors (see below), whose sum is σ = 388785309920. Its totient is φ = 83307038976.

The previous prime is 194387872897. The next prime is 194387872961. The reversal of 194387872924 is 429278783491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815472 + ... + 1919560.

Almost surely, 2^194387872924 is an apocalyptic number.

194387872924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

194387872924 is an abundant number, since it is smaller than the sum of its proper divisors (194397436996).

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

194387872924 is a wasteful number, since it uses less digits than its factorization.

194387872924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170797 (or 170795 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 64.

The spelling of 194387872924 in words is "one hundred ninety-four billion, three hundred eighty-seven million, eight hundred seventy-two thousand, nine hundred twenty-four".