20874791159 has 2 divisors, whose sum is σ = 20874791160. Its totient is φ = 20874791158.

The previous prime is 20874791143. The next prime is 20874791183. The reversal of 20874791159 is 95119747802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20874791159 - 2⁴ = 20874791143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20874791159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20874751159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10437395579 + 10437395580.

It is an arithmetic number, because the mean of its divisors is an integer number (10437395580).

Almost surely, 2^20874791159 is an apocalyptic number.

20874791159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20874791159 is an equidigital number, since it uses as much as digits as its factorization.

20874791159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 20874791159 in words is "twenty billion, eight hundred seventy-four million, seven hundred ninety-one thousand, one hundred fifty-nine".