834131914985 has 8 divisors (see below), whose sum is σ = 1001077241280. Its totient is φ = 667226236464.

The previous prime is 834131914943. The next prime is 834131915027. The reversal of 834131914985 is 589419131438.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (834131914943) and next prime (834131915027).

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 834131914985 - 2²² = 834127720681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 834131914985.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9865637 + ... + 9949826.

It is an arithmetic number, because the mean of its divisors is an integer number (125134655160).

Almost surely, 2^834131914985 is an apocalyptic number.

It is an amenable number.

834131914985 is a deficient number, since it is larger than the sum of its proper divisors (166945326295).

834131914985 is a wasteful number, since it uses less digits than its factorization.

834131914985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19823887.

The product of its digits is 3732480, while the sum is 56.

The spelling of 834131914985 in words is "eight hundred thirty-four billion, one hundred thirty-one million, nine hundred fourteen thousand, nine hundred eighty-five".