16412687838 has 12 divisors (see below), whose sum is σ = 35560823688. Its totient is φ = 5470895940.

The previous prime is 16412687821. The next prime is 16412687857. The reversal of 16412687838 is 83878621461.

It is a super-2 number, since 2×16412687838² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455907978 + ... + 455908013.

It is an arithmetic number, because the mean of its divisors is an integer number (2963401974).

Almost surely, 2^16412687838 is an apocalyptic number.

16412687838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16412687838 is an abundant number, since it is smaller than the sum of its proper divisors (19148135850).

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

16412687838 is a wasteful number, since it uses less digits than its factorization.

16412687838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911815999 (or 911815996 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 16412687838 in words is "sixteen billion, four hundred twelve million, six hundred eighty-seven thousand, eight hundred thirty-eight".