31623084661 has 8 divisors (see below), whose sum is σ = 36299880000. Its totient is φ = 26986092288.

The previous prime is 31623084653. The next prime is 31623084671. The reversal of 31623084661 is 16648032613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31623084661 - 2³ = 31623084653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31623084601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9949036 + ... + 9952213.

It is an arithmetic number, because the mean of its divisors is an integer number (4537485000).

Almost surely, 2^31623084661 is an apocalyptic number.

It is an amenable number.

31623084661 is a deficient number, since it is larger than the sum of its proper divisors (4676795339).

31623084661 is a wasteful number, since it uses less digits than its factorization.

31623084661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901483.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 31623084661 in words is "thirty-one billion, six hundred twenty-three million, eighty-four thousand, six hundred sixty-one".