22894995881 has 2 divisors, whose sum is σ = 22894995882. Its totient is φ = 22894995880.

The previous prime is 22894995833. The next prime is 22894995911. The reversal of 22894995881 is 18859949822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22885638400 + 9357481 = 151280^2 + 3059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22894995881 is a prime.

It is a super-2 number, since 2×22894995881² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22894995481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11447497940 + 11447497941.

It is an arithmetic number, because the mean of its divisors is an integer number (11447497941).

Almost surely, 2^22894995881 is an apocalyptic number.

It is an amenable number.

22894995881 is a deficient number, since it is larger than the sum of its proper divisors (1).

22894995881 is an equidigital number, since it uses as much as digits as its factorization.

22894995881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29859840, while the sum is 65.

The spelling of 22894995881 in words is "twenty-two billion, eight hundred ninety-four million, nine hundred ninety-five thousand, eight hundred eighty-one".