20263674654 has 48 divisors (see below), whose sum is σ = 46500648480. Its totient is φ = 6355399680.

The previous prime is 20263674649. The next prime is 20263674661. The reversal of 20263674654 is 45647636202.

20263674654 is a `hidden beast` number, since 2 + 0 + 2 + 636 + 7 + 4 + 6 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1388407 + ... + 1402925.

It is an arithmetic number, because the mean of its divisors is an integer number (968763510).

Almost surely, 2^20263674654 is an apocalyptic number.

20263674654 is an abundant number, since it is smaller than the sum of its proper divisors (26236973826).

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

20263674654 is a wasteful number, since it uses less digits than its factorization.

20263674654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105 (or 19102 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 20263674654 in words is "twenty billion, two hundred sixty-three million, six hundred seventy-four thousand, six hundred fifty-four".