22457195861 has 2 divisors, whose sum is σ = 22457195862. Its totient is φ = 22457195860.

The previous prime is 22457195833. The next prime is 22457195897. The reversal of 22457195861 is 16859175422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17964040900 + 4493154961 = 134030^2 + 67031^2 .

It is a cyclic number.

It is not a de Polignac number, because 22457195861 - 2⁶ = 22457195797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22457195821) 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, 11228597930 + 11228597931.

It is an arithmetic number, because the mean of its divisors is an integer number (11228597931).

Almost surely, 2^22457195861 is an apocalyptic number.

It is an amenable number.

22457195861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22457195861 is an equidigital number, since it uses as much as digits as its factorization.

22457195861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 50.

The spelling of 22457195861 in words is "twenty-two billion, four hundred fifty-seven million, one hundred ninety-five thousand, eight hundred sixty-one".