18040826828 has 12 divisors (see below), whose sum is σ = 31753942080. Its totient is φ = 8968271952.

The previous prime is 18040826821. The next prime is 18040826849. The reversal of 18040826828 is 82862804081.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18040826821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13034588 + ... + 13035971.

It is an arithmetic number, because the mean of its divisors is an integer number (2646161840).

Almost surely, 2^18040826828 is an apocalyptic number.

It is an amenable number.

18040826828 is a deficient number, since it is larger than the sum of its proper divisors (13713115252).

18040826828 is a wasteful number, since it uses less digits than its factorization.

18040826828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26070736 (or 26070734 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 47.

The spelling of 18040826828 in words is "eighteen billion, forty million, eight hundred twenty-six thousand, eight hundred twenty-eight".