22018751959 has 2 divisors, whose sum is σ = 22018751960. Its totient is φ = 22018751958.

The previous prime is 22018751921. The next prime is 22018751969. The reversal of 22018751959 is 95915781022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22018751959 - 2⁷ = 22018751831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22018751969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11009375979 + 11009375980.

It is an arithmetic number, because the mean of its divisors is an integer number (11009375980).

Almost surely, 2^22018751959 is an apocalyptic number.

22018751959 is a deficient number, since it is larger than the sum of its proper divisors (1).

22018751959 is an equidigital number, since it uses as much as digits as its factorization.

22018751959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 22018751959 in words is "twenty-two billion, eighteen million, seven hundred fifty-one thousand, nine hundred fifty-nine".