18843480057347 has 8 divisors (see below), whose sum is σ = 20804192660160. Its totient is φ = 16924045614760.

The previous prime is 18843480057323. The next prime is 18843480057407. The reversal of 18843480057347 is 74375008434881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18843480057347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18843480057347.

It is not an unprimeable number, because it can be changed into a prime (18843480057317) 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, 10319539097 + ... + 10319540922.

It is an arithmetic number, because the mean of its divisors is an integer number (2600524082520).

Almost surely, 2^{18843480057347} is an apocalyptic number.

18843480057347 is a deficient number, since it is larger than the sum of its proper divisors (1960712602813).

18843480057347 is a wasteful number, since it uses less digits than its factorization.

18843480057347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20639080113.

The product of its (nonzero) digits is 72253440, while the sum is 62.

The spelling of 18843480057347 in words is "eighteen trillion, eight hundred forty-three billion, four hundred eighty million, fifty-seven thousand, three hundred forty-seven".