20900314845 has 32 divisors (see below), whose sum is σ = 39341773440. Its totient is φ = 10491137280.

The previous prime is 20900314829. The next prime is 20900314867. The reversal of 20900314845 is 54841300902.

It is not a de Polignac number, because 20900314845 - 2⁴ = 20900314829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4551151 + ... + 4555740.

It is an arithmetic number, because the mean of its divisors is an integer number (1229430420).

Almost surely, 2^20900314845 is an apocalyptic number.

It is an amenable number.

20900314845 is a deficient number, since it is larger than the sum of its proper divisors (18441458595).

20900314845 is a wasteful number, since it uses less digits than its factorization.

20900314845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9106922 (or 9106916 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 20900314845 in words is "twenty billion, nine hundred million, three hundred fourteen thousand, eight hundred forty-five".