22715415637 has 2 divisors, whose sum is σ = 22715415638. Its totient is φ = 22715415636.

The previous prime is 22715415631. The next prime is 22715415673. The reversal of 22715415637 is 73651451722.

It is a happy number.

Together with next prime (22715415673) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20234778001 + 2480637636 = 142249^2 + 49806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22715415637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22715415593 and 22715415602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22715415631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357707818 + 11357707819.

It is an arithmetic number, because the mean of its divisors is an integer number (11357707819).

Almost surely, 2^22715415637 is an apocalyptic number.

It is an amenable number.

22715415637 is a deficient number, since it is larger than the sum of its proper divisors (1).

22715415637 is an equidigital number, since it uses as much as digits as its factorization.

22715415637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The spelling of 22715415637 in words is "twenty-two billion, seven hundred fifteen million, four hundred fifteen thousand, six hundred thirty-seven".