3331961645293 has 2 divisors, whose sum is σ = 3331961645294. Its totient is φ = 3331961645292.

The previous prime is 3331961645179. The next prime is 3331961645303. The reversal of 3331961645293 is 3925461691333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3008930829129 + 323030816164 = 1734627^2 + 568358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3331961645293 is a prime.

It is a super-2 number, since 2×3331961645293² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3331961645893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665980822646 + 1665980822647.

It is an arithmetic number, because the mean of its divisors is an integer number (1665980822647).

Almost surely, 2^{3331961645293} is an apocalyptic number.

It is an amenable number.

3331961645293 is a deficient number, since it is larger than the sum of its proper divisors (1).

3331961645293 is an equidigital number, since it uses as much as digits as its factorization.

3331961645293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9447840, while the sum is 55.

The spelling of 3331961645293 in words is "three trillion, three hundred thirty-one billion, nine hundred sixty-one million, six hundred forty-five thousand, two hundred ninety-three".