20676356884 has 12 divisors (see below), whose sum is σ = 36188680500. Its totient is φ = 10336733888.

The previous prime is 20676356863. The next prime is 20676356927. The reversal of 20676356884 is 48865367602.

It can be written as a sum of positive squares in 2 ways, for example, as 20598564484 + 77792400 = 143522^2 + 8820^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328609 + ... + 386440.

It is an arithmetic number, because the mean of its divisors is an integer number (3015723375).

Almost surely, 2^20676356884 is an apocalyptic number.

It is an amenable number.

20676356884 is a deficient number, since it is larger than the sum of its proper divisors (15512323616).

20676356884 is a wasteful number, since it uses less digits than its factorization.

20676356884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722282 (or 722280 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 20676356884 in words is "twenty billion, six hundred seventy-six million, three hundred fifty-six thousand, eight hundred eighty-four".