76312726261 has 2 divisors, whose sum is σ = 76312726262. Its totient is φ = 76312726260.

The previous prime is 76312726223. The next prime is 76312726267. The reversal of 76312726261 is 16262721367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44318249361 + 31994476900 = 210519^2 + 178870^2 .

It is a cyclic number.

It is not a de Polignac number, because 76312726261 - 2¹⁵ = 76312693493 is a prime.

It is a super-3 number, since 3×76312726261³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76312726267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38156363130 + 38156363131.

It is an arithmetic number, because the mean of its divisors is an integer number (38156363131).

Almost surely, 2^76312726261 is an apocalyptic number.

It is an amenable number.

76312726261 is a deficient number, since it is larger than the sum of its proper divisors (1).

76312726261 is an equidigital number, since it uses as much as digits as its factorization.

76312726261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The spelling of 76312726261 in words is "seventy-six billion, three hundred twelve million, seven hundred twenty-six thousand, two hundred sixty-one".