18270730547 has 12 divisors (see below), whose sum is σ = 19106503920. Its totient is φ = 17470079088.

The previous prime is 18270730483. The next prime is 18270730561. The reversal of 18270730547 is 74503707281.

It is not a de Polignac number, because 18270730547 - 2⁶ = 18270730483 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18270730498 and 18270730507.

It is not an unprimeable number, because it can be changed into a prime (18270730567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2233058 + ... + 2241224.

It is an arithmetic number, because the mean of its divisors is an integer number (1592208660).

Almost surely, 2^18270730547 is an apocalyptic number.

18270730547 is a deficient number, since it is larger than the sum of its proper divisors (835773373).

18270730547 is an equidigital number, since it uses as much as digits as its factorization.

18270730547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12442 (or 12419 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 18270730547 in words is "eighteen billion, two hundred seventy million, seven hundred thirty thousand, five hundred forty-seven".