263298045499 has 2 divisors, whose sum is σ = 263298045500. Its totient is φ = 263298045498.

The previous prime is 263298045481. The next prime is 263298045551. The reversal of 263298045499 is 994540892362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263298045499 - 2¹⁷ = 263297914427 is a prime.

It is not a weakly prime, because it can be changed into another prime (263298045419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131649022749 + 131649022750.

It is an arithmetic number, because the mean of its divisors is an integer number (131649022750).

Almost surely, 2^263298045499 is an apocalyptic number.

263298045499 is a deficient number, since it is larger than the sum of its proper divisors (1).

263298045499 is an equidigital number, since it uses as much as digits as its factorization.

263298045499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 61.

The spelling of 263298045499 in words is "two hundred sixty-three billion, two hundred ninety-eight million, forty-five thousand, four hundred ninety-nine".