331716974881 has 2 divisors, whose sum is σ = 331716974882. Its totient is φ = 331716974880.

The previous prime is 331716974861. The next prime is 331716974917. The reversal of 331716974881 is 188479617133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253587780625 + 78129194256 = 503575^2 + 279516^2 .

It is an emirp because it is prime and its reverse (188479617133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331716974881 - 2²¹ = 331714877729 is a prime.

It is a super-2 number, since 2×331716974881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331716974851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165858487440 + 165858487441.

It is an arithmetic number, because the mean of its divisors is an integer number (165858487441).

Almost surely, 2^331716974881 is an apocalyptic number.

It is an amenable number.

331716974881 is a deficient number, since it is larger than the sum of its proper divisors (1).

331716974881 is an equidigital number, since it uses as much as digits as its factorization.

331716974881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The spelling of 331716974881 in words is "three hundred thirty-one billion, seven hundred sixteen million, nine hundred seventy-four thousand, eight hundred eighty-one".