245577307979 has 2 divisors, whose sum is σ = 245577307980. Its totient is φ = 245577307978.

The previous prime is 245577307973. The next prime is 245577308021. The reversal of 245577307979 is 979703775542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245577307979 - 2³⁶ = 176857831243 is a prime.

It is not a weakly prime, because it can be changed into another prime (245577307973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122788653989 + 122788653990.

It is an arithmetic number, because the mean of its divisors is an integer number (122788653990).

Almost surely, 2^245577307979 is an apocalyptic number.

245577307979 is a deficient number, since it is larger than the sum of its proper divisors (1).

245577307979 is an equidigital number, since it uses as much as digits as its factorization.

245577307979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116688600, while the sum is 65.

The spelling of 245577307979 in words is "two hundred forty-five billion, five hundred seventy-seven million, three hundred seven thousand, nine hundred seventy-nine".