13367992728 has 32 divisors (see below), whose sum is σ = 33644286000. Its totient is φ = 4426090368.

The previous prime is 13367992717. The next prime is 13367992769. The reversal of 13367992728 is 82729976331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1865551 + ... + 1872702.

Almost surely, 2^13367992728 is an apocalyptic number.

It is an amenable number.

13367992728 is an abundant number, since it is smaller than the sum of its proper divisors (20276293272).

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

13367992728 is a wasteful number, since it uses less digits than its factorization.

13367992728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738411 (or 3738407 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 57.

The spelling of 13367992728 in words is "thirteen billion, three hundred sixty-seven million, nine hundred ninety-two thousand, seven hundred twenty-eight".