18635000976 has 120 divisors (see below), whose sum is σ = 56262169080. Its totient is φ = 5735927808.

The previous prime is 18635000947. The next prime is 18635000983. The reversal of 18635000976 is 67900053681.

It is a happy number.

18635000976 is a `hidden beast` number, since 1 + 8 + 635 + 0 + 0 + 0 + 9 + 7 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9124070400 + 9510930576 = 95520^2 + 97524^2 .

It is a super-2 number, since 2×18635000976² (a number of 21 digits) contains 22 as substring.

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, 57930 + ... + 201558.

It is an arithmetic number, because the mean of its divisors is an integer number (468851409).

Almost surely, 2^18635000976 is an apocalyptic number.

18635000976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18635000976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28131084540).

18635000976 is an abundant number, since it is smaller than the sum of its proper divisors (37627168104).

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

18635000976 is a wasteful number, since it uses less digits than its factorization.

18635000976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143713 (or 143704 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 18635000976 in words is "eighteen billion, six hundred thirty-five million, nine hundred seventy-six", and thus it is an aban number.