31956770793007 has 2 divisors, whose sum is σ = 31956770793008. Its totient is φ = 31956770793006.

The previous prime is 31956770792971. The next prime is 31956770793029. The reversal of 31956770793007 is 70039707765913.

It is a strong prime.

It is an emirp because it is prime and its reverse (70039707765913) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31956770793007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31956770793007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31956770799007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15978385396503 + 15978385396504.

It is an arithmetic number, because the mean of its divisors is an integer number (15978385396504).

Almost surely, 2^{31956770793007} is an apocalyptic number.

31956770793007 is a deficient number, since it is larger than the sum of its proper divisors (1).

31956770793007 is an equidigital number, since it uses as much as digits as its factorization.

31956770793007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52509870, while the sum is 64.

The spelling of 31956770793007 in words is "thirty-one trillion, nine hundred fifty-six billion, seven hundred seventy million, seven hundred ninety-three thousand, seven".