31669368859 has 4 divisors (see below), whose sum is σ = 31671659016. Its totient is φ = 31667078704.

The previous prime is 31669368847. The next prime is 31669368869. The reversal of 31669368859 is 95886396613.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31669368859 - 2⁹ = 31669368347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31669368859.

It is not an unprimeable number, because it can be changed into a prime (31669368839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124209 + ... + 1152034.

It is an arithmetic number, because the mean of its divisors is an integer number (7917914754).

Almost surely, 2^31669368859 is an apocalyptic number.

31669368859 is a deficient number, since it is larger than the sum of its proper divisors (2290157).

31669368859 is a wasteful number, since it uses less digits than its factorization.

31669368859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290156.

The product of its digits is 50388480, while the sum is 64.

The spelling of 31669368859 in words is "thirty-one billion, six hundred sixty-nine million, three hundred sixty-eight thousand, eight hundred fifty-nine".