31662106589 has 4 divisors (see below), whose sum is σ = 31663608960. Its totient is φ = 31660604220.

The previous prime is 31662106577. The next prime is 31662106627. The reversal of 31662106589 is 98560126613.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-31662106589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31662106519) 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, 719117 + ... + 761874.

It is an arithmetic number, because the mean of its divisors is an integer number (7915902240).

Almost surely, 2^31662106589 is an apocalyptic number.

It is an amenable number.

31662106589 is a deficient number, since it is larger than the sum of its proper divisors (1502371).

31662106589 is a wasteful number, since it uses less digits than its factorization.

31662106589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502370.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 31662106589 in words is "thirty-one billion, six hundred sixty-two million, one hundred six thousand, five hundred eighty-nine".