22636774357 has 2 divisors, whose sum is σ = 22636774358. Its totient is φ = 22636774356.

The previous prime is 22636774351. The next prime is 22636774387. The reversal of 22636774357 is 75347763622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14200535556 + 8436238801 = 119166^2 + 91849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22636774357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22636774351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318387178 + 11318387179.

It is an arithmetic number, because the mean of its divisors is an integer number (11318387179).

Almost surely, 2^22636774357 is an apocalyptic number.

It is an amenable number.

22636774357 is a deficient number, since it is larger than the sum of its proper divisors (1).

22636774357 is an equidigital number, since it uses as much as digits as its factorization.

22636774357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8890560, while the sum is 52.

The spelling of 22636774357 in words is "twenty-two billion, six hundred thirty-six million, seven hundred seventy-four thousand, three hundred fifty-seven".