56821646134 has 16 divisors (see below), whose sum is σ = 92987830800. Its totient is φ = 25826088960.

The previous prime is 56821646093. The next prime is 56821646153. The reversal of 56821646134 is 43164612865.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228502 + ... + 407254.

It is an arithmetic number, because the mean of its divisors is an integer number (5811739425).

Almost surely, 2^56821646134 is an apocalyptic number.

56821646134 is a deficient number, since it is larger than the sum of its proper divisors (36166184666).

56821646134 is a wasteful number, since it uses less digits than its factorization.

56821646134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193215.

The product of its digits is 829440, while the sum is 46.

The spelling of 56821646134 in words is "fifty-six billion, eight hundred twenty-one million, six hundred forty-six thousand, one hundred thirty-four".