361278852499 has 2 divisors, whose sum is σ = 361278852500. Its totient is φ = 361278852498.

The previous prime is 361278852421. The next prime is 361278852503. The reversal of 361278852499 is 994258872163.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 361278852499 - 2²⁷ = 361144634771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 361278852499.

It is not a weakly prime, because it can be changed into another prime (361278852419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180639426249 + 180639426250.

It is an arithmetic number, because the mean of its divisors is an integer number (180639426250).

Almost surely, 2^361278852499 is an apocalyptic number.

361278852499 is a deficient number, since it is larger than the sum of its proper divisors (1).

361278852499 is an equidigital number, since it uses as much as digits as its factorization.

361278852499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 64.

The spelling of 361278852499 in words is "three hundred sixty-one billion, two hundred seventy-eight million, eight hundred fifty-two thousand, four hundred ninety-nine".