7931939298212 has 12 divisors (see below), whose sum is σ = 13881690867660. Its totient is φ = 3965741907456.

The previous prime is 7931939298211. The next prime is 7931939298221. The reversal of 7931939298212 is 2128929391397.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6955372388416 + 976566909796 = 2637304^2 + 988214^2 .

It is a super-2 number, since 2×7931939298212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7931939298211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56857037 + ... + 56996372.

It is an arithmetic number, because the mean of its divisors is an integer number (1156807572305).

Almost surely, 2^{7931939298212} is an apocalyptic number.

It is an amenable number.

7931939298212 is a deficient number, since it is larger than the sum of its proper divisors (5949751569448).

7931939298212 is a wasteful number, since it uses less digits than its factorization.

7931939298212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113870830 (or 113870828 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 65.

The spelling of 7931939298212 in words is "seven trillion, nine hundred thirty-one billion, nine hundred thirty-nine million, two hundred ninety-eight thousand, two hundred twelve".