22542765867539 has 2 divisors, whose sum is σ = 22542765867540. Its totient is φ = 22542765867538.

The previous prime is 22542765867521. The next prime is 22542765867571. The reversal of 22542765867539 is 93576856724522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22542765867539 is a prime.

It is not a weakly prime, because it can be changed into another prime (22542765867439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271382933769 + 11271382933770.

It is an arithmetic number, because the mean of its divisors is an integer number (11271382933770).

Almost surely, 2^{22542765867539} is an apocalyptic number.

22542765867539 is a deficient number, since it is larger than the sum of its proper divisors (1).

22542765867539 is an equidigital number, since it uses as much as digits as its factorization.

22542765867539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096000, while the sum is 71.

The spelling of 22542765867539 in words is "twenty-two trillion, five hundred forty-two billion, seven hundred sixty-five million, eight hundred sixty-seven thousand, five hundred thirty-nine".