20702677400 has 48 divisors (see below), whose sum is σ = 50667088200. Its totient is φ = 7845223680.

The previous prime is 20702677399. The next prime is 20702677409. The reversal of 20702677400 is 477620702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20702677409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2720237 + ... + 2727836.

Almost surely, 2^20702677400 is an apocalyptic number.

20702677400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20702677400 is an abundant number, since it is smaller than the sum of its proper divisors (29964410800).

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

20702677400 is a wasteful number, since it uses less digits than its factorization.

20702677400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448108 (or 5448099 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The spelling of 20702677400 in words is "twenty billion, seven hundred two million, six hundred seventy-seven thousand, four hundred".