13022399977 has 2 divisors, whose sum is σ = 13022399978. Its totient is φ = 13022399976.

The previous prime is 13022399903. The next prime is 13022400019. The reversal of 13022399977 is 77999322031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10072932496 + 2949467481 = 100364^2 + 54309^2 .

It is a cyclic number.

It is not a de Polignac number, because 13022399977 - 2⁷ = 13022399849 is a prime.

It is not a weakly prime, because it can be changed into another prime (13022399777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511199988 + 6511199989.

It is an arithmetic number, because the mean of its divisors is an integer number (6511199989).

Almost surely, 2^13022399977 is an apocalyptic number.

It is an amenable number.

13022399977 is a deficient number, since it is larger than the sum of its proper divisors (1).

13022399977 is an equidigital number, since it uses as much as digits as its factorization.

13022399977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1285956, while the sum is 52.

The spelling of 13022399977 in words is "thirteen billion, twenty-two million, three hundred ninety-nine thousand, nine hundred seventy-seven".