163874937999 has 48 divisors (see below), whose sum is σ = 230907702272. Its totient is φ = 103349385216.

The previous prime is 163874937991. The next prime is 163874938001. The reversal of 163874937999 is 999739478361.

It is not a de Polignac number, because 163874937999 - 2³ = 163874937991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163874937999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163874937991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32622402 + ... + 32627424.

Almost surely, 2^163874937999 is an apocalyptic number.

163874937999 is a deficient number, since it is larger than the sum of its proper divisors (67032764273).

163874937999 is a wasteful number, since it uses less digits than its factorization.

163874937999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5315 counting only the distinct ones).

The product of its digits is 555532992, while the sum is 75.

The spelling of 163874937999 in words is "one hundred sixty-three billion, eight hundred seventy-four million, nine hundred thirty-seven thousand, nine hundred ninety-nine".