18679849917552 has 120 divisors (see below), whose sum is σ = 54724068292608. Its totient is φ = 5940888105600.

The previous prime is 18679849917541. The next prime is 18679849917563. The reversal of 18679849917552 is 25571994897681.

18679849917552 is a `hidden beast` number, since 1 + 8 + 6 + 7 + 9 + 8 + 49 + 9 + 17 + 552 = 666.

It is an interprime number because it is at equal distance from previous prime (18679849917541) and next prime (18679849917563).

It is a super-2 number, since 2×18679849917552² (a number of 27 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 23 ways as a sum of consecutive naturals, for example, 29151748 + ... + 29785635.

Almost surely, 2^{18679849917552} is an apocalyptic number.

18679849917552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18679849917552 is an abundant number, since it is smaller than the sum of its proper divisors (36044218375056).

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

18679849917552 is a wasteful number, since it uses less digits than its factorization.

18679849917552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58937499 (or 58937490 counting only the distinct ones).

The product of its digits is 2743372800, while the sum is 81.

The spelling of 18679849917552 in words is "eighteen trillion, six hundred seventy-nine billion, eight hundred forty-nine million, nine hundred seventeen thousand, five hundred fifty-two".