8372428819 has 8 divisors (see below), whose sum is σ = 8648729600. Its totient is φ = 8096517000.

The previous prime is 8372428811. The next prime is 8372428829. The reversal of 8372428819 is 9188242738.

It is a happy number.

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 8372428819 - 2³ = 8372428811 is a prime.

It is a super-2 number, since 2×8372428819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8372428811) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 53157 + ... + 139894.

It is an arithmetic number, because the mean of its divisors is an integer number (1081091200).

Almost surely, 2^8372428819 is an apocalyptic number.

8372428819 is a deficient number, since it is larger than the sum of its proper divisors (276300781).

8372428819 is a wasteful number, since it uses less digits than its factorization.

8372428819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194481.

The product of its digits is 1548288, while the sum is 52.

The square root of 8372428819 is about 91500.9771477879. The cubic root of 8372428819 is about 2030.5662085477.

The spelling of 8372428819 in words is "eight billion, three hundred seventy-two million, four hundred twenty-eight thousand, eight hundred nineteen".