20973898359 has 12 divisors (see below), whose sum is σ = 32077727136. Its totient is φ = 13160092992.

The previous prime is 20973898327. The next prime is 20973898373. The reversal of 20973898359 is 95389837902.

20973898359 is a `hidden beast` number, since 209 + 73 + 8 + 9 + 8 + 359 = 666.

It is not a de Polignac number, because 20973898359 - 2⁵ = 20973898327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20973898296 and 20973898305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20973898159) 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, 68541999 + ... + 68542304.

It is an arithmetic number, because the mean of its divisors is an integer number (2673143928).

Almost surely, 2^20973898359 is an apocalyptic number.

20973898359 is a deficient number, since it is larger than the sum of its proper divisors (11103828777).

20973898359 is a wasteful number, since it uses less digits than its factorization.

20973898359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137084326 (or 137084323 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

It can be divided in two parts, 20 and 973898359, that added together give a palindrome (973898379).

The spelling of 20973898359 in words is "twenty billion, nine hundred seventy-three million, eight hundred ninety-eight thousand, three hundred fifty-nine".