249863185361359 has 2 divisors, whose sum is σ = 249863185361360. Its totient is φ = 249863185361358.

The previous prime is 249863185361219. The next prime is 249863185361399. The reversal of 249863185361359 is 953163581368942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249863185361359 - 2³⁹ = 249313429547471 is a prime.

It is a super-2 number, since 2×249863185361359² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249863185361291 and 249863185361300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249863185361399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124931592680679 + 124931592680680.

It is an arithmetic number, because the mean of its divisors is an integer number (124931592680680).

Almost surely, 2^{249863185361359} is an apocalyptic number.

249863185361359 is a deficient number, since it is larger than the sum of its proper divisors (1).

249863185361359 is an equidigital number, since it uses as much as digits as its factorization.

249863185361359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1007769600, while the sum is 73.

The spelling of 249863185361359 in words is "two hundred forty-nine trillion, eight hundred sixty-three billion, one hundred eighty-five million, three hundred sixty-one thousand, three hundred fifty-nine".