15257147022420 has 48 divisors (see below), whose sum is σ = 43031836588608. Its totient is φ = 4038874927360.

The previous prime is 15257147022419. The next prime is 15257147022457. The reversal of 15257147022420 is 2422074175251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928042086 + ... + 928058525.

It is an arithmetic number, because the mean of its divisors is an integer number (896496595596).

Almost surely, 2^{15257147022420} is an apocalyptic number.

15257147022420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15257147022420 is an abundant number, since it is smaller than the sum of its proper divisors (27774689566188).

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

15257147022420 is a wasteful number, since it uses less digits than its factorization.

15257147022420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856100760 (or 1856100758 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 15257147022420 in words is "fifteen trillion, two hundred fifty-seven billion, one hundred forty-seven million, twenty-two thousand, four hundred twenty".