20940486832 has 40 divisors (see below), whose sum is σ = 41154084720. Its totient is φ = 10320261120.

The previous prime is 20940486817. The next prime is 20940486851. The reversal of 20940486832 is 23868404902.

It is a super-2 number, since 2×20940486832² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2201607 + ... + 2211097.

It is an arithmetic number, because the mean of its divisors is an integer number (1028852118).

Almost surely, 2^20940486832 is an apocalyptic number.

It is an amenable number.

20940486832 is a deficient number, since it is larger than the sum of its proper divisors (20213597888).

20940486832 is a wasteful number, since it uses less digits than its factorization.

20940486832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11461 (or 11455 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 20940486832 in words is "twenty billion, nine hundred forty million, four hundred eighty-six thousand, eight hundred thirty-two".