15272404231128 has 32 divisors (see below), whose sum is σ = 41652011540160. Its totient is φ = 4628001282080.

The previous prime is 15272404231099. The next prime is 15272404231153. The reversal of 15272404231128 is 82113240427251.

It is a self number, because there is not a number n which added to its sum of digits gives 15272404231128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28925007750 + ... + 28925008277.

It is an arithmetic number, because the mean of its divisors is an integer number (1301625360630).

Almost surely, 2^{15272404231128} is an apocalyptic number.

It is an amenable number.

15272404231128 is an abundant number, since it is smaller than the sum of its proper divisors (26379607309032).

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

15272404231128 is a wasteful number, since it uses less digits than its factorization.

15272404231128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57850016047 (or 57850016043 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

Adding to 15272404231128 its reverse (82113240427251), we get a palindrome (97385644658379).

The spelling of 15272404231128 in words is "fifteen trillion, two hundred seventy-two billion, four hundred four million, two hundred thirty-one thousand, one hundred twenty-eight".