28190960154256 has 15 divisors (see below), whose sum is σ = 54620026447651. Its totient is φ = 14095469458096.

The previous prime is 28190960154229. The next prime is 28190960154293. The reversal of 28190960154256 is 65245106909182.

The square root of 28190960154256 is 5309516.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28190960154256.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20574375 + ... + 21901753.

Almost surely, 2^{28190960154256} is an apocalyptic number.

28190960154256 is the 5309516-th square number.

It is an amenable number.

28190960154256 is a deficient number, since it is larger than the sum of its proper divisors (26429066293395).

28190960154256 is an frugal number, since it uses more digits than its factorization.

28190960154256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654766 (or 1327381 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 28190960154256 in words is "twenty-eight trillion, one hundred ninety billion, nine hundred sixty million, one hundred fifty-four thousand, two hundred fifty-six".