20626972134 has 36 divisors (see below), whose sum is σ = 43836103884. Its totient is φ = 6469330688.

The previous prime is 20626972133. The next prime is 20626972139. The reversal of 20626972134 is 43127962602.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20626972133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5978842 + ... + 5982290.

Almost surely, 2^20626972134 is an apocalyptic number.

20626972134 is an abundant number, since it is smaller than the sum of its proper divisors (23209131750).

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

20626972134 is an frugal number, since it uses more digits than its factorization.

20626972134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6937 (or 3471 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 20626972134 in words is "twenty billion, six hundred twenty-six million, nine hundred seventy-two thousand, one hundred thirty-four".