56646733826 has 4 divisors (see below), whose sum is σ = 84970100742. Its totient is φ = 28323366912.

The previous prime is 56646733823. The next prime is 56646733837. The reversal of 56646733826 is 62833764665.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32508450601 + 24138283225 = 180301^2 + 155365^2 .

It is not an unprimeable number, because it can be changed into a prime (56646733823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14161683455 + ... + 14161683458.

Almost surely, 2^56646733826 is an apocalyptic number.

56646733826 is a deficient number, since it is larger than the sum of its proper divisors (28323366916).

56646733826 is a wasteful number, since it uses less digits than its factorization.

56646733826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28323366915.

The product of its digits is 26127360, while the sum is 56.

The spelling of 56646733826 in words is "fifty-six billion, six hundred forty-six million, seven hundred thirty-three thousand, eight hundred twenty-six".