18761636004772 has 12 divisors (see below), whose sum is σ = 32838532685056. Its totient is φ = 9379198094760.

The previous prime is 18761636004679. The next prime is 18761636004791. The reversal of 18761636004772 is 27740063616781.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404950848 + ... + 404997175.

Almost surely, 2^{18761636004772} is an apocalyptic number.

It is an amenable number.

18761636004772 is a deficient number, since it is larger than the sum of its proper divisors (14076896680284).

18761636004772 is a wasteful number, since it uses less digits than its factorization.

18761636004772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809953818 (or 809953816 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 18761636004772 in words is "eighteen trillion, seven hundred sixty-one billion, six hundred thirty-six million, four thousand, seven hundred seventy-two".