8078923020 has 144 divisors (see below), whose sum is σ = 27163358208. Its totient is φ = 1787022720.

The previous prime is 8078923019. The next prime is 8078923043. The reversal of 8078923020 is 203298708.

It is a self number, because there is not a number n which added to its sum of digits gives 8078923020.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46819 + ... + 135461.

It is an arithmetic number, because the mean of its divisors is an integer number (188634432).

Almost surely, 2^8078923020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8078923020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13581679104).

8078923020 is an abundant number, since it is smaller than the sum of its proper divisors (19084435188).

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

8078923020 is a wasteful number, since it uses less digits than its factorization.

8078923020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88700 (or 88691 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 8078923020 is about 89882.8293947181. The cubic root of 8078923020 is about 2006.5554081695. Note that the first 3 decimals are identical.

The spelling of 8078923020 in words is "eight billion, seventy-eight million, nine hundred twenty-three thousand, twenty".