276346000261 has 2 divisors, whose sum is σ = 276346000262. Its totient is φ = 276346000260.

The previous prime is 276346000199. The next prime is 276346000279. The reversal of 276346000261 is 162000643672.

It is the 214611-st star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192532276225 + 83813724036 = 438785^2 + 289506^2 .

It is a cyclic number.

It is not a de Polignac number, because 276346000261 - 2²⁷ = 276211782533 is a prime.

It is a super-2 number, since 2×276346000261² (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 276346000261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276346000291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138173000130 + 138173000131.

It is an arithmetic number, because the mean of its divisors is an integer number (138173000131).

Almost surely, 2^276346000261 is an apocalyptic number.

It is an amenable number.

276346000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

276346000261 is an equidigital number, since it uses as much as digits as its factorization.

276346000261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 276346000261 in words is "two hundred seventy-six billion, three hundred forty-six million, two hundred sixty-one", and thus it is an aban number.