3268716525881 has 2 divisors, whose sum is σ = 3268716525882. Its totient is φ = 3268716525880.

The previous prime is 3268716525857. The next prime is 3268716525889. The reversal of 3268716525881 is 1885256178623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3033922977856 + 234793548025 = 1741816^2 + 484555^2 .

It is an emirp because it is prime and its reverse (1885256178623) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3268716525881 is a prime.

It is a super-2 number, since 2×3268716525881² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3268716525889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1634358262940 + 1634358262941.

It is an arithmetic number, because the mean of its divisors is an integer number (1634358262941).

Almost surely, 2^{3268716525881} is an apocalyptic number.

It is an amenable number.

3268716525881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3268716525881 is an equidigital number, since it uses as much as digits as its factorization.

3268716525881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38707200, while the sum is 62.

The spelling of 3268716525881 in words is "three trillion, two hundred sixty-eight billion, seven hundred sixteen million, five hundred twenty-five thousand, eight hundred eighty-one".