20676866774 has 32 divisors (see below), whose sum is σ = 33798060000. Its totient is φ = 9449685504.

The previous prime is 20676866759. The next prime is 20676866783. The reversal of 20676866774 is 47766867602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1700942 + ... + 1713054.

It is an arithmetic number, because the mean of its divisors is an integer number (1056189375).

Almost surely, 2^20676866774 is an apocalyptic number.

20676866774 is a deficient number, since it is larger than the sum of its proper divisors (13121193226).

20676866774 is a wasteful number, since it uses less digits than its factorization.

20676866774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712.

The product of its (nonzero) digits is 28449792, while the sum is 59.

The spelling of 20676866774 in words is "twenty billion, six hundred seventy-six million, eight hundred sixty-six thousand, seven hundred seventy-four".