20614736939 has 4 divisors (see below), whose sum is σ = 20964139320. Its totient is φ = 20265334560.

The previous prime is 20614736921. The next prime is 20614736959. The reversal of 20614736939 is 93963741602.

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

It is a cyclic number.

It is not a de Polignac number, because 20614736939 - 2²⁸ = 20346301483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20614736959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174701102 + ... + 174701219.

It is an arithmetic number, because the mean of its divisors is an integer number (5241034830).

Almost surely, 2^20614736939 is an apocalyptic number.

20614736939 is a deficient number, since it is larger than the sum of its proper divisors (349402381).

20614736939 is an equidigital number, since it uses as much as digits as its factorization.

20614736939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349402380.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 20614736939 in words is "twenty billion, six hundred fourteen million, seven hundred thirty-six thousand, nine hundred thirty-nine".