61368255524273 has 2 divisors, whose sum is σ = 61368255524274. Its totient is φ = 61368255524272.

The previous prime is 61368255524263. The next prime is 61368255524299. The reversal of 61368255524273 is 37242555286316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48342999185569 + 13025256338704 = 6952913^2 + 3609052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61368255524273 is a prime.

It is a super-3 number, since 3×61368255524273³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (61368255524263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30684127762136 + 30684127762137.

It is an arithmetic number, because the mean of its divisors is an integer number (30684127762137).

Almost surely, 2^{61368255524273} is an apocalyptic number.

It is an amenable number.

61368255524273 is a deficient number, since it is larger than the sum of its proper divisors (1).

61368255524273 is an equidigital number, since it uses as much as digits as its factorization.

61368255524273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 59.

The spelling of 61368255524273 in words is "sixty-one trillion, three hundred sixty-eight billion, two hundred fifty-five million, five hundred twenty-four thousand, two hundred seventy-three".