20430673700 has 36 divisors (see below), whose sum is σ = 44343575892. Its totient is φ = 8170608000.

The previous prime is 20430673699. The next prime is 20430673759. The reversal of 20430673700 is 737603402.

It can be written as a sum of positive squares in 6 ways, for example, as 68525284 + 20362148416 = 8278^2 + 142696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552182 + ... + 588018.

It is an arithmetic number, because the mean of its divisors is an integer number (1231765997).

Almost surely, 2^20430673700 is an apocalyptic number.

20430673700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20430673700 is an abundant number, since it is smaller than the sum of its proper divisors (23912902192).

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

20430673700 is a wasteful number, since it uses less digits than its factorization.

20430673700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41552 (or 41545 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 32.

The spelling of 20430673700 in words is "twenty billion, four hundred thirty million, six hundred seventy-three thousand, seven hundred".