23440025422417 has 2 divisors, whose sum is σ = 23440025422418. Its totient is φ = 23440025422416.

The previous prime is 23440025422409. The next prime is 23440025422493. The reversal of 23440025422417 is 71422452004432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22361634558481 + 1078390863936 = 4728809^2 + 1038456^2 .

It is a cyclic number.

It is not a de Polignac number, because 23440025422417 - 2³ = 23440025422409 is a prime.

It is a super-2 number, since 2×23440025422417² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23440025422417.

It is not a weakly prime, because it can be changed into another prime (23440025422717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720012711208 + 11720012711209.

It is an arithmetic number, because the mean of its divisors is an integer number (11720012711209).

Almost surely, 2^{23440025422417} is an apocalyptic number.

It is an amenable number.

23440025422417 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440025422417 is an equidigital number, since it uses as much as digits as its factorization.

23440025422417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 40.

Adding to 23440025422417 its reverse (71422452004432), we get a palindrome (94862477426849).

The spelling of 23440025422417 in words is "twenty-three trillion, four hundred forty billion, twenty-five million, four hundred twenty-two thousand, four hundred seventeen".