368491491225 has 243 divisors, whose sum is σ = 788347974141. Its totient is φ = 164336515200.

The previous prime is 368491491223. The next prime is 368491491229. The reversal of 368491491225 is 522194194863.

It is a happy number.

The square root of 368491491225 is 607035.

It is a perfect power (a square), and thus also a powerful number.

368491491225 is a `hidden beast` number, since 3 + 68 + 4 + 91 + 491 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 94979226969 + 273512264256 = 308187^2 + 522984^2 .

It is not a de Polignac number, because 368491491225 - 2¹ = 368491491223 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (368491491223) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 1302089934 + ... + 1302090216.

Almost surely, 2^368491491225 is an apocalyptic number.

368491491225 is the 607035-th square number.

368491491225 is the 303518-th centered octagonal number.

It is an amenable number.

368491491225 is an abundant number, since it is smaller than the sum of its proper divisors (419856482916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

368491491225 is a wasteful number, since it uses less digits than its factorization.

368491491225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 315 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 368491491225 in words is "three hundred sixty-eight billion, four hundred ninety-one million, four hundred ninety-one thousand, two hundred twenty-five".