15400028131258 has 48 divisors (see below), whose sum is σ = 25192354842720. Its totient is φ = 7040653365312.

The previous prime is 15400028131253. The next prime is 15400028131259. The reversal of 15400028131258 is 85213182000451.

15400028131258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15400028131258.

It is not an unprimeable number, because it can be changed into a prime (15400028131253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89492316 + ... + 89664232.

It is an arithmetic number, because the mean of its divisors is an integer number (524840725890).

Almost surely, 2^{15400028131258} is an apocalyptic number.

15400028131258 is a deficient number, since it is larger than the sum of its proper divisors (9792326711462).

15400028131258 is a wasteful number, since it uses less digits than its factorization.

15400028131258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174799 (or 174770 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 15400028131258 in words is "fifteen trillion, four hundred billion, twenty-eight million, one hundred thirty-one thousand, two hundred fifty-eight".