15040735128 has 80 divisors (see below), whose sum is σ = 42756884280. Its totient is φ = 4938734592.

The previous prime is 15040735123. The next prime is 15040735147. The reversal of 15040735128 is 82153704051.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15040735092 and 15040735101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040735121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129801 + ... + 216632.

Almost surely, 2^15040735128 is an apocalyptic number.

15040735128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15040735128 is an abundant number, since it is smaller than the sum of its proper divisors (27716149152).

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

15040735128 is a wasteful number, since it uses less digits than its factorization.

15040735128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346518 (or 346505 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 15040735128 in words is "fifteen billion, forty million, seven hundred thirty-five thousand, one hundred twenty-eight".