28758056060820 has 24 divisors (see below), whose sum is σ = 80522556970464. Its totient is φ = 7668814949536.

The previous prime is 28758056060791. The next prime is 28758056060821. The reversal of 28758056060820 is 2806065085782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758056060821) by changing a digit.

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, 239650467114 + ... + 239650467233.

It is an arithmetic number, because the mean of its divisors is an integer number (3355106540436).

Almost surely, 2^{28758056060820} is an apocalyptic number.

28758056060820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28758056060820 is an abundant number, since it is smaller than the sum of its proper divisors (51764500909644).

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

28758056060820 is a wasteful number, since it uses less digits than its factorization.

28758056060820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479300934359 (or 479300934357 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 28758056060820 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, eight hundred twenty".