361958399489 has 2 divisors, whose sum is σ = 361958399490. Its totient is φ = 361958399488.

The previous prime is 361958399483. The next prime is 361958399507. The reversal of 361958399489 is 984993859163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304924840000 + 57033559489 = 552200^2 + 238817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361958399489 is a prime.

It is a super-2 number, since 2×361958399489² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (361958399483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180979199744 + 180979199745.

It is an arithmetic number, because the mean of its divisors is an integer number (180979199745).

Almost surely, 2^361958399489 is an apocalyptic number.

It is an amenable number.

361958399489 is a deficient number, since it is larger than the sum of its proper divisors (1).

361958399489 is an equidigital number, since it uses as much as digits as its factorization.

361958399489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453496320, while the sum is 74.

The spelling of 361958399489 in words is "three hundred sixty-one billion, nine hundred fifty-eight million, three hundred ninety-nine thousand, four hundred eighty-nine".