15001537297940 has 48 divisors (see below), whose sum is σ = 31555984320000. Its totient is φ = 5990572486272.

The previous prime is 15001537297919. The next prime is 15001537297961. The reversal of 15001537297940 is 4979273510051.

It is an interprime number because it is at equal distance from previous prime (15001537297919) and next prime (15001537297961).

It is a super-2 number, since 2×15001537297940² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38043911 + ... + 38436209.

It is an arithmetic number, because the mean of its divisors is an integer number (657416340000).

Almost surely, 2^{15001537297940} is an apocalyptic number.

15001537297940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15001537297940 is an abundant number, since it is smaller than the sum of its proper divisors (16554447022060).

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

15001537297940 is a wasteful number, since it uses less digits than its factorization.

15001537297940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395504 (or 395502 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 15001537297940 in words is "fifteen trillion, one billion, five hundred thirty-seven million, two hundred ninety-seven thousand, nine hundred forty".