276241260457 has 2 divisors, whose sum is σ = 276241260458. Its totient is φ = 276241260456.

The previous prime is 276241260413. The next prime is 276241260499. The reversal of 276241260457 is 754062142672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211817175696 + 64424084761 = 460236^2 + 253819^2 .

It is a cyclic number.

It is not a de Polignac number, because 276241260457 - 2³¹ = 274093776809 is a prime.

It is a super-2 number, since 2×276241260457² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (276241260157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138120630228 + 138120630229.

It is an arithmetic number, because the mean of its divisors is an integer number (138120630229).

Almost surely, 2^276241260457 is an apocalyptic number.

It is an amenable number.

276241260457 is a deficient number, since it is larger than the sum of its proper divisors (1).

276241260457 is an equidigital number, since it uses as much as digits as its factorization.

276241260457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 276241260457 in words is "two hundred seventy-six billion, two hundred forty-one million, two hundred sixty thousand, four hundred fifty-seven".