2681276393 has 2 divisors, whose sum is σ = 2681276394. Its totient is φ = 2681276392.

The previous prime is 2681276341. The next prime is 2681276401. The reversal of 2681276393 is 3936721862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1517647849 + 1163628544 = 38957^2 + 34112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2681276393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2681276093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340638196 + 1340638197.

It is an arithmetic number, because the mean of its divisors is an integer number (1340638197).

Almost surely, 2^2681276393 is an apocalyptic number.

It is an amenable number.

2681276393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681276393 is an equidigital number, since it uses as much as digits as its factorization.

2681276393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 2681276393 is about 51781.0427956023. The cubic root of 2681276393 is about 1389.2503925350.

The spelling of 2681276393 in words is "two billion, six hundred eighty-one million, two hundred seventy-six thousand, three hundred ninety-three".