31163679685 has 16 divisors (see below), whose sum is σ = 39083316480. Its totient is φ = 23809730560.

The previous prime is 31163679683. The next prime is 31163679689. The reversal of 31163679685 is 58697636113.

It is not a de Polignac number, because 31163679685 - 2¹ = 31163679683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31163679683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137665 + ... + 285094.

It is an arithmetic number, because the mean of its divisors is an integer number (2442707280).

Almost surely, 2^31163679685 is an apocalyptic number.

It is an amenable number.

31163679685 is a deficient number, since it is larger than the sum of its proper divisors (7919636795).

31163679685 is a wasteful number, since it uses less digits than its factorization.

31163679685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423428.

The product of its digits is 4898880, while the sum is 55.

The spelling of 31163679685 in words is "thirty-one billion, one hundred sixty-three million, six hundred seventy-nine thousand, six hundred eighty-five".