56628745746 has 16 divisors (see below), whose sum is σ = 113320399008. Its totient is φ = 18865764000.

The previous prime is 56628745729. The next prime is 56628745777. The reversal of 56628745746 is 64754782665.

It is a happy number.

It is a super-2 number, since 2×56628745746² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56628745746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2609440 + ... + 2631051.

It is an arithmetic number, because the mean of its divisors is an integer number (7082524938).

Almost surely, 2^56628745746 is an apocalyptic number.

56628745746 is an abundant number, since it is smaller than the sum of its proper divisors (56691653262).

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

56628745746 is a wasteful number, since it uses less digits than its factorization.

56628745746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242297.

The product of its digits is 67737600, while the sum is 60.

The spelling of 56628745746 in words is "fifty-six billion, six hundred twenty-eight million, seven hundred forty-five thousand, seven hundred forty-six".