18047533485 has 8 divisors (see below), whose sum is σ = 28876053600. Its totient is φ = 9625351184.

The previous prime is 18047533481. The next prime is 18047533499. The reversal of 18047533485 is 58433574081.

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 18047533485 - 2² = 18047533481 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18047533481) 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, 601584435 + ... + 601584464.

It is an arithmetic number, because the mean of its divisors is an integer number (3609506700).

Almost surely, 2^18047533485 is an apocalyptic number.

18047533485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18047533485 is a deficient number, since it is larger than the sum of its proper divisors (10828520115).

18047533485 is a wasteful number, since it uses less digits than its factorization.

18047533485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203168907.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 18047533485 in words is "eighteen billion, forty-seven million, five hundred thirty-three thousand, four hundred eighty-five".