18845013433 has 8 divisors (see below), whose sum is σ = 19042042880. Its totient is φ = 18648040320.

The previous prime is 18845013431. The next prime is 18845013449. The reversal of 18845013433 is 33431054881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18845013433 - 2¹ = 18845013431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18845013431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194088 + ... + 1209766.

It is an arithmetic number, because the mean of its divisors is an integer number (2380255360).

Almost surely, 2^18845013433 is an apocalyptic number.

It is an amenable number.

18845013433 is a deficient number, since it is larger than the sum of its proper divisors (197029447).

18845013433 is a wasteful number, since it uses less digits than its factorization.

18845013433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28167.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 18845013433 in words is "eighteen billion, eight hundred forty-five million, thirteen thousand, four hundred thirty-three".