15243368868 has 144 divisors (see below), whose sum is σ = 49920008320. Its totient is φ = 3808622592.

The previous prime is 15243368863. The next prime is 15243368911. The reversal of 15243368868 is 86886334251.

15243368868 is a `hidden beast` number, since 1 + 524 + 3 + 36 + 8 + 86 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (15243368863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60205 + ... + 184692.

Almost surely, 2^15243368868 is an apocalyptic number.

15243368868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15243368868 is an abundant number, since it is smaller than the sum of its proper divisors (34676639452).

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

15243368868 is a wasteful number, since it uses less digits than its factorization.

15243368868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244946 (or 244941 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 15243368868 in words is "fifteen billion, two hundred forty-three million, three hundred sixty-eight thousand, eight hundred sixty-eight".