20714791679 has 2 divisors, whose sum is σ = 20714791680. Its totient is φ = 20714791678.

The previous prime is 20714791673. The next prime is 20714791681. The reversal of 20714791679 is 97619741702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20714791679 - 2²⁰ = 20713743103 is a prime.

Together with 20714791681, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20714791679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20714791673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10357395839 + 10357395840.

It is an arithmetic number, because the mean of its divisors is an integer number (10357395840).

Almost surely, 2^20714791679 is an apocalyptic number.

20714791679 is a deficient number, since it is larger than the sum of its proper divisors (1).

20714791679 is an equidigital number, since it uses as much as digits as its factorization.

20714791679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 20714791679 in words is "twenty billion, seven hundred fourteen million, seven hundred ninety-one thousand, six hundred seventy-nine".