15240887793 has 12 divisors (see below), whose sum is σ = 22526584080. Its totient is φ = 9924298776.

The previous prime is 15240887789. The next prime is 15240887863. The reversal of 15240887793 is 39778804251.

It is a happy number.

15240887793 is a `hidden beast` number, since 152 + 408 + 87 + 7 + 9 + 3 = 666.

It is not a de Polignac number, because 15240887793 - 2² = 15240887789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15240887723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19690683 + ... + 19691456.

It is an arithmetic number, because the mean of its divisors is an integer number (1877215340).

Almost surely, 2^15240887793 is an apocalyptic number.

It is an amenable number.

15240887793 is a deficient number, since it is larger than the sum of its proper divisors (7285696287).

15240887793 is a wasteful number, since it uses less digits than its factorization.

15240887793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39382188 (or 39382185 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 15240887793 in words is "fifteen billion, two hundred forty million, eight hundred eighty-seven thousand, seven hundred ninety-three".