495245978999 has 2 divisors, whose sum is σ = 495245979000. Its totient is φ = 495245978998.

The previous prime is 495245978963. The next prime is 495245979023. The reversal of 495245978999 is 999879542594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495245978999 - 2¹² = 495245974903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495245978099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247622989499 + 247622989500.

It is an arithmetic number, because the mean of its divisors is an integer number (247622989500).

Almost surely, 2^495245978999 is an apocalyptic number.

495245978999 is a deficient number, since it is larger than the sum of its proper divisors (1).

495245978999 is an equidigital number, since it uses as much as digits as its factorization.

495245978999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2645395200, while the sum is 80.

The spelling of 495245978999 in words is "four hundred ninety-five billion, two hundred forty-five million, nine hundred seventy-eight thousand, nine hundred ninety-nine".