3163712985 has 24 divisors (see below), whose sum is σ = 5686873920. Its totient is φ = 1687312944.

The previous prime is 3163712969. The next prime is 3163712987. The reversal of 3163712985 is 5892173613.

3163712985 is a `hidden beast` number, since 3 + 1 + 637 + 1 + 2 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 3163712985 - 2⁴ = 3163712969 is a prime.

It is a super-2 number, since 2×3163712985² = 20018159702915220450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3163712985.

It is not an unprimeable number, because it can be changed into a prime (3163712987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1300725 + ... + 1303154.

It is an arithmetic number, because the mean of its divisors is an integer number (236953080).

Almost surely, 2^3163712985 is an apocalyptic number.

It is an amenable number.

3163712985 is a deficient number, since it is larger than the sum of its proper divisors (2523160935).

3163712985 is an equidigital number, since it uses as much as digits as its factorization.

3163712985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603899 (or 2603887 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3163712985 is about 56246.8931141979. The cubic root of 3163712985 is about 1468.0213069554.

The spelling of 3163712985 in words is "three billion, one hundred sixty-three million, seven hundred twelve thousand, nine hundred eighty-five".