20463398172904 has 16 divisors (see below), whose sum is σ = 38372263917120. Its totient is φ = 10230794461680.

The previous prime is 20463398172883. The next prime is 20463398172977. The reversal of 20463398172904 is 40927189336402.

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, 112981954 + ... + 113162929.

It is an arithmetic number, because the mean of its divisors is an integer number (2398266494820).

Almost surely, 2^{20463398172904} is an apocalyptic number.

It is an amenable number.

20463398172904 is a deficient number, since it is larger than the sum of its proper divisors (17908865744216).

20463398172904 is a wasteful number, since it uses less digits than its factorization.

20463398172904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226156200 (or 226156196 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 20463398172904 in words is "twenty trillion, four hundred sixty-three billion, three hundred ninety-eight million, one hundred seventy-two thousand, nine hundred four".