274481824115981 has 2 divisors, whose sum is σ = 274481824115982. Its totient is φ = 274481824115980.

The previous prime is 274481824115957. The next prime is 274481824116023. The reversal of 274481824115981 is 189511428184472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185505353401225 + 88976470714756 = 13620035^2 + 9432734^2 .

It is a cyclic number.

It is not a de Polignac number, because 274481824115981 - 2²² = 274481819921677 is a prime.

It is a super-2 number, since 2×274481824115981² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274481824115951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137240912057990 + 137240912057991.

It is an arithmetic number, because the mean of its divisors is an integer number (137240912057991).

Almost surely, 2^{274481824115981} is an apocalyptic number.

It is an amenable number.

274481824115981 is a deficient number, since it is larger than the sum of its proper divisors (1).

274481824115981 is an equidigital number, since it uses as much as digits as its factorization.

274481824115981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41287680, while the sum is 65.

The spelling of 274481824115981 in words is "two hundred seventy-four trillion, four hundred eighty-one billion, eight hundred twenty-four million, one hundred fifteen thousand, nine hundred eighty-one".