22742859757 has 2 divisors, whose sum is σ = 22742859758. Its totient is φ = 22742859756.

The previous prime is 22742859739. The next prime is 22742859803. The reversal of 22742859757 is 75795824722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18361876036 + 4380983721 = 135506^2 + 66189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22742859757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22742859707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11371429878 + 11371429879.

It is an arithmetic number, because the mean of its divisors is an integer number (11371429879).

Almost surely, 2^22742859757 is an apocalyptic number.

It is an amenable number.

22742859757 is a deficient number, since it is larger than the sum of its proper divisors (1).

22742859757 is an equidigital number, since it uses as much as digits as its factorization.

22742859757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 58.

The spelling of 22742859757 in words is "twenty-two billion, seven hundred forty-two million, eight hundred fifty-nine thousand, seven hundred fifty-seven".