873988428394 has 8 divisors (see below), whose sum is σ = 1332474161508. Its totient is φ = 429830374560.

The previous prime is 873988428359. The next prime is 873988428413. The reversal of 873988428394 is 493824889378.

It can be written as a sum of positive squares in 2 ways, for example, as 567365978169 + 306622450225 = 753237^2 + 553735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×873988428394² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3581919667 + ... + 3581919910.

Almost surely, 2^873988428394 is an apocalyptic number.

873988428394 is a deficient number, since it is larger than the sum of its proper divisors (458485733114).

873988428394 is a wasteful number, since it uses less digits than its factorization.

873988428394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7163839640.

The product of its digits is 668860416, while the sum is 73.

The spelling of 873988428394 in words is "eight hundred seventy-three billion, nine hundred eighty-eight million, four hundred twenty-eight thousand, three hundred ninety-four".