68834191625 has 16 divisors (see below), whose sum is σ = 85955255568. Its totient is φ = 55035184000.

The previous prime is 68834191619. The next prime is 68834191633. The reversal of 68834191625 is 52619143886.

It can be written as a sum of positive squares in 8 ways, for example, as 32836339264 + 35997852361 = 181208^2 + 189731^2 .

It is not a de Polignac number, because 68834191625 - 2⁸ = 68834191369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55139 + ... + 375111.

It is an arithmetic number, because the mean of its divisors is an integer number (5372203473).

Almost surely, 2^68834191625 is an apocalyptic number.

It is an amenable number.

68834191625 is a deficient number, since it is larger than the sum of its proper divisors (17121063943).

68834191625 is a wasteful number, since it uses less digits than its factorization.

68834191625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321709 (or 321699 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The spelling of 68834191625 in words is "sixty-eight billion, eight hundred thirty-four million, one hundred ninety-one thousand, six hundred twenty-five".