8078191830 has 32 divisors (see below), whose sum is σ = 21541845600. Its totient is φ = 2154184416.

The previous prime is 8078191757. The next prime is 8078191837. The reversal of 8078191830 is 381918708.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8078191837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14959345 + ... + 14959884.

It is an arithmetic number, because the mean of its divisors is an integer number (673182675).

Almost surely, 2^8078191830 is an apocalyptic number.

8078191830 is an abundant number, since it is smaller than the sum of its proper divisors (13463653770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8078191830 is a wasteful number, since it uses less digits than its factorization.

8078191830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29919245 (or 29919239 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 8078191830 is about 89878.7618406039. The cubic root of 8078191830 is about 2006.4948713253.

The spelling of 8078191830 in words is "eight billion, seventy-eight million, one hundred ninety-one thousand, eight hundred thirty".