31325683667 has 6 divisors (see below), whose sum is σ = 33061178988. Its totient is φ = 29676963132.

The previous prime is 31325683661. The next prime is 31325683769. The reversal of 31325683667 is 76638652313.

It is not a de Polignac number, because 31325683667 - 2¹⁰ = 31325682643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31325683661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43387013 + ... + 43387734.

It is an arithmetic number, because the mean of its divisors is an integer number (5510196498).

Almost surely, 2^31325683667 is an apocalyptic number.

31325683667 is a deficient number, since it is larger than the sum of its proper divisors (1735495321).

31325683667 is an equidigital number, since it uses as much as digits as its factorization.

31325683667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86774785 (or 86774766 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The spelling of 31325683667 in words is "thirty-one billion, three hundred twenty-five million, six hundred eighty-three thousand, six hundred sixty-seven".