20959076913 has 8 divisors (see below), whose sum is σ = 28222123776. Its totient is φ = 13834374000.

The previous prime is 20959076911. The next prime is 20959076951. The reversal of 20959076913 is 31967095902.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20959076913 - 2¹ = 20959076911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20959076911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34585633 + ... + 34586238.

It is an arithmetic number, because the mean of its divisors is an integer number (3527765472).

Almost surely, 2^20959076913 is an apocalyptic number.

It is an amenable number.

20959076913 is a deficient number, since it is larger than the sum of its proper divisors (7263046863).

20959076913 is a wasteful number, since it uses less digits than its factorization.

20959076913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69171975.

The product of its (nonzero) digits is 918540, while the sum is 51.

The spelling of 20959076913 in words is "twenty billion, nine hundred fifty-nine million, seventy-six thousand, nine hundred thirteen".