20210308959 has 4 divisors (see below), whose sum is σ = 26947078616. Its totient is φ = 13473539304.

The previous prime is 20210308939. The next prime is 20210308961. The reversal of 20210308959 is 95980301202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20210308959 - 2²⁸ = 19941873503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210308939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368384824 + ... + 3368384829.

It is an arithmetic number, because the mean of its divisors is an integer number (6736769654).

Almost surely, 2^20210308959 is an apocalyptic number.

20210308959 is a deficient number, since it is larger than the sum of its proper divisors (6736769657).

20210308959 is an equidigital number, since it uses as much as digits as its factorization.

20210308959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736769656.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 20210308959 in words is "twenty billion, two hundred ten million, three hundred eight thousand, nine hundred fifty-nine".