22624620397 has 2 divisors, whose sum is σ = 22624620398. Its totient is φ = 22624620396.

The previous prime is 22624620371. The next prime is 22624620461. The reversal of 22624620397 is 79302642622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22624371396 + 249001 = 150414^2 + 499^2 .

It is a cyclic number.

It is not a de Polignac number, because 22624620397 - 2⁷ = 22624620269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22624620497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11312310198 + 11312310199.

It is an arithmetic number, because the mean of its divisors is an integer number (11312310199).

Almost surely, 2^22624620397 is an apocalyptic number.

It is an amenable number.

22624620397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22624620397 is an equidigital number, since it uses as much as digits as its factorization.

22624620397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 22624620397 in words is "twenty-two billion, six hundred twenty-four million, six hundred twenty thousand, three hundred ninety-seven".