274931858161 has 8 divisors (see below), whose sum is σ = 275243705000. Its totient is φ = 274620170880.

The previous prime is 274931858153. The next prime is 274931858171. The reversal of 274931858161 is 161858139472.

It can be written as a sum of positive squares in 4 ways, for example, as 95372880625 + 179558977536 = 308825^2 + 423744^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 274931858161 - 2³ = 274931858153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274931858171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3593575 + ... + 3669283.

It is an arithmetic number, because the mean of its divisors is an integer number (34405463125).

Almost surely, 2^274931858161 is an apocalyptic number.

It is an amenable number.

274931858161 is a deficient number, since it is larger than the sum of its proper divisors (311846839).

274931858161 is a wasteful number, since it uses less digits than its factorization.

274931858161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79779.

The product of its digits is 2903040, while the sum is 55.

The spelling of 274931858161 in words is "two hundred seventy-four billion, nine hundred thirty-one million, eight hundred fifty-eight thousand, one hundred sixty-one".