10018543820 has 24 divisors (see below), whose sum is σ = 22146255600. Its totient is φ = 3796500672.

The previous prime is 10018543811. The next prime is 10018543831. The reversal of 10018543820 is 2834581001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13181915 + ... + 13182674.

It is an arithmetic number, because the mean of its divisors is an integer number (922760650).

Almost surely, 2^10018543820 is an apocalyptic number.

10018543820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10018543820 is an abundant number, since it is smaller than the sum of its proper divisors (12127711780).

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

10018543820 is a wasteful number, since it uses less digits than its factorization.

10018543820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26364617 (or 26364615 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 10018543820 in words is "ten billion, eighteen million, five hundred forty-three thousand, eight hundred twenty".