10018391012 has 12 divisors (see below), whose sum is σ = 20036782080. Its totient is φ = 4293596136.

The previous prime is 10018390919. The next prime is 10018391107. The reversal of 10018391012 is 21019381001.

10018391012 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178899812 + ... + 178899867.

It is an arithmetic number, because the mean of its divisors is an integer number (1669731840).

Almost surely, 2^10018391012 is an apocalyptic number.

It is an amenable number.

10018391012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10018391012 is a wasteful number, since it uses less digits than its factorization.

10018391012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357799690 (or 357799688 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 10018391012 in words is "ten billion, eighteen million, three hundred ninety-one thousand, twelve".