361405565273 has 2 divisors, whose sum is σ = 361405565274. Its totient is φ = 361405565272.

The previous prime is 361405565267. The next prime is 361405565347. The reversal of 361405565273 is 372565504163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360614662144 + 790903129 = 600512^2 + 28123^2 .

It is a cyclic number.

It is not a de Polignac number, because 361405565273 - 2¹² = 361405561177 is a prime.

It is a super-2 number, since 2×361405565273² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (361405565233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180702782636 + 180702782637.

It is an arithmetic number, because the mean of its divisors is an integer number (180702782637).

Almost surely, 2^361405565273 is an apocalyptic number.

It is an amenable number.

361405565273 is a deficient number, since it is larger than the sum of its proper divisors (1).

361405565273 is an equidigital number, since it uses as much as digits as its factorization.

361405565273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 47.

The spelling of 361405565273 in words is "three hundred sixty-one billion, four hundred five million, five hundred sixty-five thousand, two hundred seventy-three".