1864795172 has 6 divisors (see below), whose sum is σ = 3263391558. Its totient is φ = 932397584.

The previous prime is 1864795159. The next prime is 1864795181. The reversal of 1864795172 is 2715974681.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1574978596 + 289816576 = 39686^2 + 17024^2 .

It is a super-2 number, since 2×1864795172² = 6954922067029019168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1864795172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233099393 + ... + 233099400.

It is an arithmetic number, because the mean of its divisors is an integer number (543898593).

Almost surely, 2^1864795172 is an apocalyptic number.

It is an amenable number.

1864795172 is a deficient number, since it is larger than the sum of its proper divisors (1398596386).

1864795172 is a wasteful number, since it uses less digits than its factorization.

1864795172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466198797 (or 466198795 counting only the distinct ones).

The product of its digits is 846720, while the sum is 50.

The square root of 1864795172 is about 43183.2742158350. The cubic root of 1864795172 is about 1230.8648756685.

The spelling of 1864795172 in words is "one billion, eight hundred sixty-four million, seven hundred ninety-five thousand, one hundred seventy-two".