245122467977 has 2 divisors, whose sum is σ = 245122467978. Its totient is φ = 245122467976.

The previous prime is 245122467949. The next prime is 245122467983. The reversal of 245122467977 is 779764221542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123137126281 + 121985341696 = 350909^2 + 349264^2 .

It is a cyclic number.

It is not a de Polignac number, because 245122467977 - 2²⁰ = 245121419401 is a prime.

It is not a weakly prime, because it can be changed into another prime (245122467277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122561233988 + 122561233989.

It is an arithmetic number, because the mean of its divisors is an integer number (122561233989).

Almost surely, 2^245122467977 is an apocalyptic number.

It is an amenable number.

245122467977 is a deficient number, since it is larger than the sum of its proper divisors (1).

245122467977 is an equidigital number, since it uses as much as digits as its factorization.

245122467977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 56.

The spelling of 245122467977 in words is "two hundred forty-five billion, one hundred twenty-two million, four hundred sixty-seven thousand, nine hundred seventy-seven".