21677803203 has 48 divisors (see below), whose sum is σ = 34219241376. Its totient is φ = 12168092160.

The previous prime is 21677803193. The next prime is 21677803211. The reversal of 21677803203 is 30230877612.

It is not a de Polignac number, because 21677803203 - 2⁶ = 21677803139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21677403203) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10875975 + ... + 10877967.

It is an arithmetic number, because the mean of its divisors is an integer number (712900862).

Almost surely, 2^21677803203 is an apocalyptic number.

21677803203 is a deficient number, since it is larger than the sum of its proper divisors (12541438173).

21677803203 is a wasteful number, since it uses less digits than its factorization.

21677803203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284 (or 3277 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 21677803203 in words is "twenty-one billion, six hundred seventy-seven million, eight hundred three thousand, two hundred three".