20893480676 has 12 divisors (see below), whose sum is σ = 36940536108. Its totient is φ = 10339041792.

The previous prime is 20893480639. The next prime is 20893480687. The reversal of 20893480676 is 67608439802.

It can be written as a sum of positive squares in 2 ways, for example, as 3131521600 + 17761959076 = 55960^2 + 133274^2 .

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 3 ways as a sum of consecutive naturals, for example, 26924201 + ... + 26924976.

It is an arithmetic number, because the mean of its divisors is an integer number (3078378009).

Almost surely, 2^20893480676 is an apocalyptic number.

It is an amenable number.

20893480676 is a deficient number, since it is larger than the sum of its proper divisors (16047055432).

20893480676 is a wasteful number, since it uses less digits than its factorization.

20893480676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53849278 (or 53849276 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 20893480676 in words is "twenty billion, eight hundred ninety-three million, four hundred eighty thousand, six hundred seventy-six".