28758056060738 has 16 divisors (see below), whose sum is σ = 45675013110264. Its totient is φ = 13533068486400.

The previous prime is 28758056060717. The next prime is 28758056060743. The reversal of 28758056060738 is 83706065085782.

It can be written as a sum of positive squares in 4 ways, for example, as 23626530868369 + 5131525192369 = 4860713^2 + 2265287^2 .

It is a super-2 number, since 2×28758056060738² (a number of 28 digits) contains 22 as substring.

It is a Curzon 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, 681413 + ... + 7614488.

Almost surely, 2^{28758056060738} is an apocalyptic number.

28758056060738 is a deficient number, since it is larger than the sum of its proper divisors (16916957049526).

28758056060738 is a wasteful number, since it uses less digits than its factorization.

28758056060738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8397877.

The product of its (nonzero) digits is 135475200, while the sum is 65.

The spelling of 28758056060738 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, seven hundred thirty-eight".