13568138488 has 32 divisors (see below), whose sum is σ = 26798112000. Its totient is φ = 6422479200.

The previous prime is 13568138483. The next prime is 13568138533. The reversal of 13568138488 is 88483186531.

It is a super-2 number, since 2×13568138488² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13568138483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189793 + ... + 251311.

It is an arithmetic number, because the mean of its divisors is an integer number (837441000).

Almost surely, 2^13568138488 is an apocalyptic number.

It is an amenable number.

13568138488 is a deficient number, since it is larger than the sum of its proper divisors (13229973512).

13568138488 is a wasteful number, since it uses less digits than its factorization.

13568138488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62995 (or 62991 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 55.

The spelling of 13568138488 in words is "thirteen billion, five hundred sixty-eight million, one hundred thirty-eight thousand, four hundred eighty-eight".