28502774083056 has 320 divisors, whose sum is σ = 93097499378688. Its totient is φ = 7312161890304.

The previous prime is 28502774083039. The next prime is 28502774083057. The reversal of 28502774083056 is 65038047720582.

It is a junction number, because it is equal to n+sod(n) for n = 28502774082987 and 28502774083005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28502774083057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 692180740 + ... + 692221916.

Almost surely, 2^{28502774083056} is an apocalyptic number.

28502774083056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28502774083056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46548749689344).

28502774083056 is an abundant number, since it is smaller than the sum of its proper divisors (64594725295632).

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

28502774083056 is a wasteful number, since it uses less digits than its factorization.

28502774083056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45528 (or 45522 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 57.

The spelling of 28502774083056 in words is "twenty-eight trillion, five hundred two billion, seven hundred seventy-four million, eighty-three thousand, fifty-six".