20868964032 has 112 divisors (see below), whose sum is σ = 66425104640. Its totient is φ = 5648735232.

The previous prime is 20868964019. The next prime is 20868964099. The reversal of 20868964032 is 23046986802.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383083 + ... + 434154.

Almost surely, 2^20868964032 is an apocalyptic number.

It is an amenable number.

20868964032 is an abundant number, since it is smaller than the sum of its proper divisors (45556140608).

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

20868964032 is a wasteful number, since it uses less digits than its factorization.

20868964032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817278 (or 817268 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 20868964032 in words is "twenty billion, eight hundred sixty-eight million, nine hundred sixty-four thousand, thirty-two".