18871744304716 has 12 divisors (see below), whose sum is σ = 33030422887840. Its totient is φ = 9434480622480.

The previous prime is 18871744304657. The next prime is 18871744304761. The reversal of 18871744304716 is 61740344717881.

It is a super-2 number, since 2×18871744304716² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347851956 + ... + 347906203.

Almost surely, 2^{18871744304716} is an apocalyptic number.

It is an amenable number.

18871744304716 is a deficient number, since it is larger than the sum of its proper divisors (14158678583124).

18871744304716 is a wasteful number, since it uses less digits than its factorization.

18871744304716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695764944 (or 695764942 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 18871744304716 in words is "eighteen trillion, eight hundred seventy-one billion, seven hundred forty-four million, three hundred four thousand, seven hundred sixteen".