7916423189 has 8 divisors (see below), whose sum is σ = 7972133400. Its totient is φ = 7860902400.

The previous prime is 7916423113. The next prime is 7916423191. The reversal of 7916423189 is 9813246197.

It can be written as a sum of positive squares in 4 ways, for example, as 2377342564 + 5539080625 = 48758^2 + 74425^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7916423189 - 2¹⁶ = 7916357653 is a prime.

It is a super-2 number, since 2×7916423189² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7916423989) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37049 + ... + 131169.

It is an arithmetic number, because the mean of its divisors is an integer number (996516675).

Almost surely, 2^7916423189 is an apocalyptic number.

It is an amenable number.

7916423189 is a deficient number, since it is larger than the sum of its proper divisors (55710211).

7916423189 is a wasteful number, since it uses less digits than its factorization.

7916423189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94711.

The product of its digits is 653184, while the sum is 50.

The square root of 7916423189 is about 88974.2838633726. The cubic root of 7916423189 is about 1993.0108702329.

The spelling of 7916423189 in words is "seven billion, nine hundred sixteen million, four hundred twenty-three thousand, one hundred eighty-nine".