245864823299 has 2 divisors, whose sum is σ = 245864823300. Its totient is φ = 245864823298.

The previous prime is 245864823293. The next prime is 245864823319. The reversal of 245864823299 is 992328468542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245864823299 - 2¹⁶ = 245864757763 is a prime.

It is a super-2 number, since 2×245864823299² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245864823293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122932411649 + 122932411650.

It is an arithmetic number, because the mean of its divisors is an integer number (122932411650).

Almost surely, 2^245864823299 is an apocalyptic number.

245864823299 is a deficient number, since it is larger than the sum of its proper divisors (1).

245864823299 is an equidigital number, since it uses as much as digits as its factorization.

245864823299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59719680, while the sum is 62.

The spelling of 245864823299 in words is "two hundred forty-five billion, eight hundred sixty-four million, eight hundred twenty-three thousand, two hundred ninety-nine".