22742824739 has 2 divisors, whose sum is σ = 22742824740. Its totient is φ = 22742824738.

The previous prime is 22742824691. The next prime is 22742824747. The reversal of 22742824739 is 93742824722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22742824739 is a prime.

It is not a weakly prime, because it can be changed into another prime (22742824789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11371412369 + 11371412370.

It is an arithmetic number, because the mean of its divisors is an integer number (11371412370).

Almost surely, 2^22742824739 is an apocalyptic number.

22742824739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22742824739 is an equidigital number, since it uses as much as digits as its factorization.

22742824739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 50.

The spelling of 22742824739 in words is "twenty-two billion, seven hundred forty-two million, eight hundred twenty-four thousand, seven hundred thirty-nine".