2681333357 has 2 divisors, whose sum is σ = 2681333358. Its totient is φ = 2681333356.

The previous prime is 2681333323. The next prime is 2681333387. The reversal of 2681333357 is 7533331862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1938552841 + 742780516 = 44029^2 + 27254^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681333357 - 2³⁰ = 1607591533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681333387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340666678 + 1340666679.

It is an arithmetic number, because the mean of its divisors is an integer number (1340666679).

Almost surely, 2^2681333357 is an apocalyptic number.

It is an amenable number.

2681333357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681333357 is an equidigital number, since it uses as much as digits as its factorization.

2681333357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 2681333357 is about 51781.5928395410. The cubic root of 2681333357 is about 1389.2602307225.

The spelling of 2681333357 in words is "two billion, six hundred eighty-one million, three hundred thirty-three thousand, three hundred fifty-seven".