31346812661 has 8 divisors (see below), whose sum is σ = 32506591104. Its totient is φ = 30203485200.

The previous prime is 31346812589. The next prime is 31346812681. The reversal of 31346812661 is 16621864313.

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 31346812661 - 2¹⁸ = 31346550517 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 (31346812681) 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, 4108865 + ... + 4116486.

It is an arithmetic number, because the mean of its divisors is an integer number (4063323888).

Almost surely, 2^31346812661 is an apocalyptic number.

It is an amenable number.

31346812661 is a deficient number, since it is larger than the sum of its proper divisors (1159778443).

31346812661 is a wasteful number, since it uses less digits than its factorization.

31346812661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225491.

The product of its digits is 124416, while the sum is 41.

The spelling of 31346812661 in words is "thirty-one billion, three hundred forty-six million, eight hundred twelve thousand, six hundred sixty-one".