20374518268 has 12 divisors (see below), whose sum is σ = 38398130680. Its totient is φ = 9403623792.

The previous prime is 20374518259. The next prime is 20374518293. The reversal of 20374518268 is 86281547302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195908778 + ... + 195908881.

Almost surely, 2^20374518268 is an apocalyptic number.

It is an amenable number.

20374518268 is a deficient number, since it is larger than the sum of its proper divisors (18023612412).

20374518268 is a wasteful number, since it uses less digits than its factorization.

20374518268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391817676 (or 391817674 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 20374518268 in words is "twenty billion, three hundred seventy-four million, five hundred eighteen thousand, two hundred sixty-eight".