361172004257 has 2 divisors, whose sum is σ = 361172004258. Its totient is φ = 361172004256.

The previous prime is 361172004241. The next prime is 361172004301. The reversal of 361172004257 is 752400271163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271181604001 + 89990400256 = 520751^2 + 299984^2 .

It is a cyclic number.

It is not a de Polignac number, because 361172004257 - 2⁴ = 361172004241 is a prime.

It is a super-2 number, since 2×361172004257² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 361172004257.

It is not a weakly prime, because it can be changed into another prime (361172004217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180586002128 + 180586002129.

It is an arithmetic number, because the mean of its divisors is an integer number (180586002129).

Almost surely, 2^361172004257 is an apocalyptic number.

It is an amenable number.

361172004257 is a deficient number, since it is larger than the sum of its proper divisors (1).

361172004257 is an equidigital number, since it uses as much as digits as its factorization.

361172004257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 361172004257 in words is "three hundred sixty-one billion, one hundred seventy-two million, four thousand, two hundred fifty-seven".