2173068642 has 16 divisors (see below), whose sum is σ = 4401152640. Its totient is φ = 715186992.

The previous prime is 2173068619. The next prime is 2173068647. The reversal of 2173068642 is 2468603712.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2173068642.

It is not an unprimeable number, because it can be changed into a prime (2173068647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291793 + ... + 2292740.

It is an arithmetic number, because the mean of its divisors is an integer number (275072040).

Almost surely, 2^2173068642 is an apocalyptic number.

2173068642 is an abundant number, since it is smaller than the sum of its proper divisors (2228083998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173068642 is a wasteful number, since it uses less digits than its factorization.

2173068642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584617.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 2173068642 is about 46616.1843354859. The cubic root of 2173068642 is about 1295.2625679686.

The spelling of 2173068642 in words is "two billion, one hundred seventy-three million, sixty-eight thousand, six hundred forty-two".