22481379787 has 2 divisors, whose sum is σ = 22481379788. Its totient is φ = 22481379786.

The previous prime is 22481379779. The next prime is 22481379793. The reversal of 22481379787 is 78797318422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22481379787 - 2³ = 22481379779 is a prime.

It is not a weakly prime, because it can be changed into another prime (22481379737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11240689893 + 11240689894.

It is an arithmetic number, because the mean of its divisors is an integer number (11240689894).

Almost surely, 2^22481379787 is an apocalyptic number.

22481379787 is a deficient number, since it is larger than the sum of its proper divisors (1).

22481379787 is an equidigital number, since it uses as much as digits as its factorization.

22481379787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 58.

The spelling of 22481379787 in words is "twenty-two billion, four hundred eighty-one million, three hundred seventy-nine thousand, seven hundred eighty-seven".