8120124018 has 32 divisors (see below), whose sum is σ = 19106176320. Its totient is φ = 2547489600.

The previous prime is 8120124017. The next prime is 8120124119. The reversal of 8120124018 is 8104210218.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 8120123982 and 8120124000.

It is not an unprimeable number, because it can be changed into a prime (8120124013) 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, 4421808 + ... + 4423643.

It is an arithmetic number, because the mean of its divisors is an integer number (597068010).

Almost surely, 2^8120124018 is an apocalyptic number.

8120124018 is an abundant number, since it is smaller than the sum of its proper divisors (10986052302).

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

8120124018 is a wasteful number, since it uses less digits than its factorization.

8120124018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8845479 (or 8845473 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 8120124018 is about 90111.7307457803. The cubic root of 8120124018 is about 2009.9606452531.

The spelling of 8120124018 in words is "eight billion, one hundred twenty million, one hundred twenty-four thousand, eighteen".