20800040604868 has 24 divisors (see below), whose sum is σ = 43408780394112. Its totient is φ = 8526724719744.

The previous prime is 20800040604851. The next prime is 20800040604943. The reversal of 20800040604868 is 86840604000802.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 16149099205 + ... + 16149100492.

It is an arithmetic number, because the mean of its divisors is an integer number (1808699183088).

Almost surely, 2^{20800040604868} is an apocalyptic number.

20800040604868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20800040604868 is an abundant number, since it is smaller than the sum of its proper divisors (22608739789244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20800040604868 is a wasteful number, since it uses less digits than its factorization.

20800040604868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32298199731 (or 32298199729 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 46.

The spelling of 20800040604868 in words is "twenty trillion, eight hundred billion, forty million, six hundred four thousand, eight hundred sixty-eight".