5615137728 has 70 divisors (see below), whose sum is σ = 16645042656. Its totient is φ = 1871710848.

The previous prime is 5615137721. The next prime is 5615137733. The reversal of 5615137728 is 8277315165.

It is a happy number.

5615137728 is a `hidden beast` number, since 5 + 61 + 513 + 7 + 72 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5615137721) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 536400 + ... + 546767.

Almost surely, 2^5615137728 is an apocalyptic number.

It is an amenable number.

5615137728 is an abundant number, since it is smaller than the sum of its proper divisors (11029904928).

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

5615137728 is a wasteful number, since it uses less digits than its factorization.

5615137728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083191 (or 1083172 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 5615137728 is about 74934.2226756240. Note that the first 3 decimals coincide. The cubic root of 5615137728 is about 1777.4066649704.

The spelling of 5615137728 in words is "five billion, six hundred fifteen million, one hundred thirty-seven thousand, seven hundred twenty-eight".