28056247315574 has 16 divisors (see below), whose sum is σ = 43147634581296. Its totient is φ = 13674286828800.

The previous prime is 28056247315493. The next prime is 28056247315633. The reversal of 28056247315574 is 47551374265082.

It is a super-2 number, since 2×28056247315574² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145996787 + ... + 146188830.

It is an arithmetic number, because the mean of its divisors is an integer number (2696727161331).

Almost surely, 2^{28056247315574} is an apocalyptic number.

28056247315574 is a deficient number, since it is larger than the sum of its proper divisors (15091387265722).

28056247315574 is a wasteful number, since it uses less digits than its factorization.

28056247315574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292186831.

The product of its (nonzero) digits is 56448000, while the sum is 59.

The spelling of 28056247315574 in words is "twenty-eight trillion, fifty-six billion, two hundred forty-seven million, three hundred fifteen thousand, five hundred seventy-four".