56102788728 has 384 divisors, whose sum is σ = 186128712000. Its totient is φ = 15606743040.

The previous prime is 56102788711. The next prime is 56102788739. The reversal of 56102788728 is 82788720165.

56102788728 is a `hidden beast` number, since 561 + 0 + 2 + 7 + 8 + 8 + 72 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72955128 + ... + 72955896.

Almost surely, 2^56102788728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56102788728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93064356000).

56102788728 is an abundant number, since it is smaller than the sum of its proper divisors (130025923272).

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

56102788728 is a wasteful number, since it uses less digits than its factorization.

56102788728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 56102788728 in words is "fifty-six billion, one hundred two million, seven hundred eighty-eight thousand, seven hundred twenty-eight".