15171262488420 has 48 divisors (see below), whose sum is σ = 43061446417920. Its totient is φ = 3990249858816.

The previous prime is 15171262488397. The next prime is 15171262488449. The reversal of 15171262488420 is 2488426217151.

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, 1731874900 + ... + 1731883659.

It is an arithmetic number, because the mean of its divisors is an integer number (897113467040).

Almost surely, 2^{15171262488420} is an apocalyptic number.

15171262488420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15171262488420 is an abundant number, since it is smaller than the sum of its proper divisors (27890183929500).

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

15171262488420 is a wasteful number, since it uses less digits than its factorization.

15171262488420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463758644 (or 3463758642 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 15171262488420 in words is "fifteen trillion, one hundred seventy-one billion, two hundred sixty-two million, four hundred eighty-eight thousand, four hundred twenty".