22045907497 has 2 divisors, whose sum is σ = 22045907498. Its totient is φ = 22045907496.

The previous prime is 22045907473. The next prime is 22045907531. The reversal of 22045907497 is 79470954022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21934794816 + 111112681 = 148104^2 + 10541^2 .

It is a cyclic number.

It is not a de Polignac number, because 22045907497 - 2⁷ = 22045907369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22045907497.

It is not a weakly prime, because it can be changed into another prime (22045907447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022953748 + 11022953749.

It is an arithmetic number, because the mean of its divisors is an integer number (11022953749).

Almost surely, 2^22045907497 is an apocalyptic number.

It is an amenable number.

22045907497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22045907497 is an equidigital number, since it uses as much as digits as its factorization.

22045907497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 22045907497 in words is "twenty-two billion, forty-five million, nine hundred seven thousand, four hundred ninety-seven".