18896677963516 has 48 divisors (see below), whose sum is σ = 34002011621088. Its totient is φ = 9183547929600.

The previous prime is 18896677963511. The next prime is 18896677963529. The reversal of 18896677963516 is 61536977669881.

It is a Harshad number since it is a multiple of its sum of digits (82).

It is a self number, because there is not a number n which added to its sum of digits gives 18896677963516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18896677963511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258988896 + ... + 259061848.

It is an arithmetic number, because the mean of its divisors is an integer number (708375242106).

Almost surely, 2^{18896677963516} is an apocalyptic number.

It is an amenable number.

18896677963516 is a deficient number, since it is larger than the sum of its proper divisors (15105333657572).

18896677963516 is a wasteful number, since it uses less digits than its factorization.

18896677963516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78862 (or 78860 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 82.

The spelling of 18896677963516 in words is "eighteen trillion, eight hundred ninety-six billion, six hundred seventy-seven million, nine hundred sixty-three thousand, five hundred sixteen".