18231333045 has 16 divisors (see below), whose sum is σ = 29521582272. Its totient is φ = 9606227840.

The previous prime is 18231333037. The next prime is 18231333067. The reversal of 18231333045 is 54033313281.

It is not a de Polignac number, because 18231333045 - 2³ = 18231333037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18231332997 and 18231333015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7320576 + ... + 7323065.

It is an arithmetic number, because the mean of its divisors is an integer number (1845098892).

Almost surely, 2^18231333045 is an apocalyptic number.

18231333045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18231333045 is a deficient number, since it is larger than the sum of its proper divisors (11290249227).

18231333045 is a wasteful number, since it uses less digits than its factorization.

18231333045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14643732.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 18231333045 in words is "eighteen billion, two hundred thirty-one million, three hundred thirty-three thousand, forty-five".