3147765938897 has 2 divisors, whose sum is σ = 3147765938898. Its totient is φ = 3147765938896.

The previous prime is 3147765938839. The next prime is 3147765938983. The reversal of 3147765938897 is 7988395677413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1981115365441 + 1166650573456 = 1407521^2 + 1080116^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147765938897 - 2⁶ = 3147765938833 is a prime.

It is a super-2 number, since 2×3147765938897² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3147765938197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573882969448 + 1573882969449.

It is an arithmetic number, because the mean of its divisors is an integer number (1573882969449).

Almost surely, 2^{3147765938897} is an apocalyptic number.

It is an amenable number.

3147765938897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147765938897 is an equidigital number, since it uses as much as digits as its factorization.

3147765938897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920360960, while the sum is 77.

The spelling of 3147765938897 in words is "three trillion, one hundred forty-seven billion, seven hundred sixty-five million, nine hundred thirty-eight thousand, eight hundred ninety-seven".