22715415397 has 2 divisors, whose sum is σ = 22715415398. Its totient is φ = 22715415396.

The previous prime is 22715415383. The next prime is 22715415409. The reversal of 22715415397 is 79351451722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16908060961 + 5807354436 = 130031^2 + 76206^2 .

It is a cyclic number.

It is not a de Polignac number, because 22715415397 - 2¹⁵ = 22715382629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22715415347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357707698 + 11357707699.

It is an arithmetic number, because the mean of its divisors is an integer number (11357707699).

Almost surely, 2^22715415397 is an apocalyptic number.

It is an amenable number.

22715415397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22715415397 is an equidigital number, since it uses as much as digits as its factorization.

22715415397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The spelling of 22715415397 in words is "twenty-two billion, seven hundred fifteen million, four hundred fifteen thousand, three hundred ninety-seven".