3195953681 has 2 divisors, whose sum is σ = 3195953682. Its totient is φ = 3195953680.

The previous prime is 3195953669. The next prime is 3195953723. The reversal of 3195953681 is 1863595913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1838694400 + 1357259281 = 42880^2 + 36841^2 .

It is a cyclic number.

It is not a de Polignac number, because 3195953681 - 2¹⁸ = 3195691537 is a prime.

It is a super-2 number, since 2×3195953681² = 20428239862194899522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3195958681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1597976840 + 1597976841.

It is an arithmetic number, because the mean of its divisors is an integer number (1597976841).

Almost surely, 2^3195953681 is an apocalyptic number.

It is an amenable number.

3195953681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3195953681 is an equidigital number, since it uses as much as digits as its factorization.

3195953681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 50.

The square root of 3195953681 is about 56532.7664368196. The cubic root of 3195953681 is about 1472.9912222002.

The spelling of 3195953681 in words is "three billion, one hundred ninety-five million, nine hundred fifty-three thousand, six hundred eighty-one".