15240338109 has 32 divisors (see below), whose sum is σ = 23925888000. Its totient is φ = 9554775552.

The previous prime is 15240338101. The next prime is 15240338123. The reversal of 15240338109 is 90183304251.

It is not a de Polignac number, because 15240338109 - 2³ = 15240338101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15240338101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578772 + ... + 604530.

It is an arithmetic number, because the mean of its divisors is an integer number (747684000).

Almost surely, 2^15240338109 is an apocalyptic number.

It is an amenable number.

15240338109 is a deficient number, since it is larger than the sum of its proper divisors (8685549891).

15240338109 is a wasteful number, since it uses less digits than its factorization.

15240338109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27074 (or 27068 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 15240338109 in words is "fifteen billion, two hundred forty million, three hundred thirty-eight thousand, one hundred nine".