245723794039 has 2 divisors, whose sum is σ = 245723794040. Its totient is φ = 245723794038.

The previous prime is 245723794013. The next prime is 245723794079. The reversal of 245723794039 is 930497327542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245723794039 - 2⁷ = 245723793911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245723794079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122861897019 + 122861897020.

It is an arithmetic number, because the mean of its divisors is an integer number (122861897020).

Almost surely, 2^245723794039 is an apocalyptic number.

245723794039 is a deficient number, since it is larger than the sum of its proper divisors (1).

245723794039 is an equidigital number, since it uses as much as digits as its factorization.

245723794039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 245723794039 in words is "two hundred forty-five billion, seven hundred twenty-three million, seven hundred ninety-four thousand, thirty-nine".