22881380377 has 2 divisors, whose sum is σ = 22881380378. Its totient is φ = 22881380376.

The previous prime is 22881380311. The next prime is 22881380479. The reversal of 22881380377 is 77308318822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21669017616 + 1212362761 = 147204^2 + 34819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22881380377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22881380377.

It is not a weakly prime, because it can be changed into another prime (22881380077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11440690188 + 11440690189.

It is an arithmetic number, because the mean of its divisors is an integer number (11440690189).

Almost surely, 2^22881380377 is an apocalyptic number.

It is an amenable number.

22881380377 is a deficient number, since it is larger than the sum of its proper divisors (1).

22881380377 is an equidigital number, since it uses as much as digits as its factorization.

22881380377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 22881380377 in words is "twenty-two billion, eight hundred eighty-one million, three hundred eighty thousand, three hundred seventy-seven".