22539879003497 has 2 divisors, whose sum is σ = 22539879003498. Its totient is φ = 22539879003496.

The previous prime is 22539879003461. The next prime is 22539879003527. The reversal of 22539879003497 is 79430097893522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17524178343721 + 5015700659776 = 4186189^2 + 2239576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22539879003497 - 2³² = 22535584036201 is a prime.

It is a super-2 number, since 2×22539879003497² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22539879063497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11269939501748 + 11269939501749.

It is an arithmetic number, because the mean of its divisors is an integer number (11269939501749).

Almost surely, 2^{22539879003497} is an apocalyptic number.

It is an amenable number.

22539879003497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22539879003497 is an equidigital number, since it uses as much as digits as its factorization.

22539879003497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 205752960, while the sum is 68.

The spelling of 22539879003497 in words is "twenty-two trillion, five hundred thirty-nine billion, eight hundred seventy-nine million, three thousand, four hundred ninety-seven".