17797139864 has 48 divisors (see below), whose sum is σ = 38830078080. Its totient is φ = 7624921920.

The previous prime is 17797139831. The next prime is 17797139881. The reversal of 17797139864 is 46893179771.

It is a junction number, because it is equal to n+sod(n) for n = 17797139797 and 17797139806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1812809 + ... + 1822599.

It is an arithmetic number, because the mean of its divisors is an integer number (808959960).

Almost surely, 2^17797139864 is an apocalyptic number.

17797139864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

17797139864 is an abundant number, since it is smaller than the sum of its proper divisors (21032938216).

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

17797139864 is a wasteful number, since it uses less digits than its factorization.

17797139864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14448 (or 14437 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 62.

The spelling of 17797139864 in words is "seventeen billion, seven hundred ninety-seven million, one hundred thirty-nine thousand, eight hundred sixty-four".