31610664679 has 4 divisors (see below), whose sum is σ = 34484361480. Its totient is φ = 28736967880.

The previous prime is 31610664607. The next prime is 31610664697. The reversal of 31610664679 is 97646601613.

It is a happy number.

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 31610664679 - 2⁷ = 31610664551 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 (31610674679) 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, 1436848384 + ... + 1436848405.

It is an arithmetic number, because the mean of its divisors is an integer number (8621090370).

Almost surely, 2^31610664679 is an apocalyptic number.

31610664679 is a deficient number, since it is larger than the sum of its proper divisors (2873696801).

31610664679 is a wasteful number, since it uses less digits than its factorization.

31610664679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873696800.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 31610664679 in words is "thirty-one billion, six hundred ten million, six hundred sixty-four thousand, six hundred seventy-nine".