8113187428 has 12 divisors (see below), whose sum is σ = 14285183920. Its totient is φ = 4031706312.

The previous prime is 8113187419. The next prime is 8113187437. The reversal of 8113187428 is 8247813118.

It is an interprime number because it is at equal distance from previous prime (8113187419) and next prime (8113187437).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6221118 + ... + 6222421.

Almost surely, 2^8113187428 is an apocalyptic number.

It is an amenable number.

8113187428 is a deficient number, since it is larger than the sum of its proper divisors (6171996492).

8113187428 is a wasteful number, since it uses less digits than its factorization.

8113187428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443706 (or 12443704 counting only the distinct ones).

The product of its digits is 86016, while the sum is 43.

The square root of 8113187428 is about 90073.2336934786. The cubic root of 8113187428 is about 2009.3881480509.

The spelling of 8113187428 in words is "eight billion, one hundred thirteen million, one hundred eighty-seven thousand, four hundred twenty-eight".