18874730433 has 8 divisors (see below), whose sum is σ = 27102177088. Its totient is φ = 11615218704.

The previous prime is 18874730431. The next prime is 18874730507. The reversal of 18874730433 is 33403747881.

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

It is not a de Polignac number, because 18874730433 - 2¹ = 18874730431 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18874730431) 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, 241983685 + ... + 241983762.

It is an arithmetic number, because the mean of its divisors is an integer number (3387772136).

Almost surely, 2^18874730433 is an apocalyptic number.

18874730433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18874730433 is a deficient number, since it is larger than the sum of its proper divisors (8227446655).

18874730433 is a wasteful number, since it uses less digits than its factorization.

18874730433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483967463.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 18874730433 in words is "eighteen billion, eight hundred seventy-four million, seven hundred thirty thousand, four hundred thirty-three".