20872296351 has 10 divisors (see below), whose sum is σ = 31179603312. Its totient is φ = 13914864180.

The previous prime is 20872296349. The next prime is 20872296383. The reversal of 20872296351 is 15369227802.

20872296351 is a `hidden beast` number, since 2 + 0 + 8 + 7 + 2 + 2 + 9 + 635 + 1 = 666.

It is not a de Polignac number, because 20872296351 - 2¹ = 20872296349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20872296297 and 20872296306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20872296301) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 128841255 + ... + 128841416.

Almost surely, 2^20872296351 is an apocalyptic number.

20872296351 is a deficient number, since it is larger than the sum of its proper divisors (10307306961).

20872296351 is an equidigital number, since it uses as much as digits as its factorization.

20872296351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257682683 (or 257682674 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 20872296351 in words is "twenty billion, eight hundred seventy-two million, two hundred ninety-six thousand, three hundred fifty-one".