20943908373 has 32 divisors (see below), whose sum is σ = 30426364800. Its totient is φ = 12764134656.

The previous prime is 20943908347. The next prime is 20943908383. The reversal of 20943908373 is 37380934902.

It is not a de Polignac number, because 20943908373 - 2¹² = 20943904277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20943908303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4422715 + ... + 4427447.

It is an arithmetic number, because the mean of its divisors is an integer number (950823900).

Almost surely, 2^20943908373 is an apocalyptic number.

It is an amenable number.

20943908373 is a deficient number, since it is larger than the sum of its proper divisors (9482456427).

20943908373 is a wasteful number, since it uses less digits than its factorization.

20943908373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 20943908373 in words is "twenty billion, nine hundred forty-three million, nine hundred eight thousand, three hundred seventy-three".