3197621366741 has 2 divisors, whose sum is σ = 3197621366742. Its totient is φ = 3197621366740.

The previous prime is 3197621366717. The next prime is 3197621366743. The reversal of 3197621366741 is 1476631267913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3134507366116 + 63114000625 = 1770454^2 + 251225^2 .

It is a cyclic number.

It is not a de Polignac number, because 3197621366741 - 2³⁴ = 3180441497557 is a prime.

It is a super-2 number, since 2×3197621366741² (a number of 26 digits) contains 22 as substring.

Together with 3197621366743, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3197621366743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598810683370 + 1598810683371.

It is an arithmetic number, because the mean of its divisors is an integer number (1598810683371).

Almost surely, 2^{3197621366741} is an apocalyptic number.

It is an amenable number.

3197621366741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3197621366741 is an equidigital number, since it uses as much as digits as its factorization.

3197621366741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 56.

The spelling of 3197621366741 in words is "three trillion, one hundred ninety-seven billion, six hundred twenty-one million, three hundred sixty-six thousand, seven hundred forty-one".