245715099499 has 2 divisors, whose sum is σ = 245715099500. Its totient is φ = 245715099498.

The previous prime is 245715099481. The next prime is 245715099557. The reversal of 245715099499 is 994990517542.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245715099499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245715099499.

It is not a weakly prime, because it can be changed into another prime (245715099449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122857549749 + 122857549750.

It is an arithmetic number, because the mean of its divisors is an integer number (122857549750).

Almost surely, 2^245715099499 is an apocalyptic number.

245715099499 is a deficient number, since it is larger than the sum of its proper divisors (1).

245715099499 is an equidigital number, since it uses as much as digits as its factorization.

245715099499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36741600, while the sum is 64.

The spelling of 245715099499 in words is "two hundred forty-five billion, seven hundred fifteen million, ninety-nine thousand, four hundred ninety-nine".