16892637985 has 16 divisors (see below), whose sum is σ = 20433980160. Its totient is φ = 13405649920.

The previous prime is 16892637967. The next prime is 16892637991. The reversal of 16892637985 is 58973629861.

It is not a de Polignac number, because 16892637985 - 2²⁷ = 16758420257 is a prime.

It is a super-2 number, since 2×16892637985² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3058056 + ... + 3063574.

It is an arithmetic number, because the mean of its divisors is an integer number (1277123760).

Almost surely, 2^16892637985 is an apocalyptic number.

It is an amenable number.

16892637985 is a deficient number, since it is larger than the sum of its proper divisors (3541342175).

16892637985 is a wasteful number, since it uses less digits than its factorization.

16892637985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10328.

The product of its digits is 39191040, while the sum is 64.

The spelling of 16892637985 in words is "sixteen billion, eight hundred ninety-two million, six hundred thirty-seven thousand, nine hundred eighty-five".