31766066713 has 4 divisors (see below), whose sum is σ = 31808821248. Its totient is φ = 31723312180.

The previous prime is 31766066677. The next prime is 31766066741.

It is a happy number.

31766066713 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31766066713 - 2⁹ = 31766066201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31766066113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21376153 + ... + 21377638.

It is an arithmetic number, because the mean of its divisors is an integer number (7952205312).

Almost surely, 2^31766066713 is an apocalyptic number.

It is an amenable number.

31766066713 is a deficient number, since it is larger than the sum of its proper divisors (42754535).

31766066713 is an equidigital number, since it uses as much as digits as its factorization.

31766066713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42754534.

The product of its (nonzero) digits is 571536, while the sum is 46.

The spelling of 31766066713 in words is "thirty-one billion, seven hundred sixty-six million, sixty-six thousand, seven hundred thirteen".