361179558461 has 2 divisors, whose sum is σ = 361179558462. Its totient is φ = 361179558460.

The previous prime is 361179558431. The next prime is 361179558463. The reversal of 361179558461 is 164855971163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249406352836 + 111773205625 = 499406^2 + 334325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361179558461 is a prime.

Together with 361179558463, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 361179558397 and 361179558406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361179558463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180589779230 + 180589779231.

It is an arithmetic number, because the mean of its divisors is an integer number (180589779231).

Almost surely, 2^361179558461 is an apocalyptic number.

It is an amenable number.

361179558461 is a deficient number, since it is larger than the sum of its proper divisors (1).

361179558461 is an equidigital number, since it uses as much as digits as its factorization.

361179558461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 56.

The spelling of 361179558461 in words is "three hundred sixty-one billion, one hundred seventy-nine million, five hundred fifty-eight thousand, four hundred sixty-one".