18067834520 has 16 divisors (see below), whose sum is σ = 40652627760. Its totient is φ = 7227133792.

The previous prime is 18067834489. The next prime is 18067834537. The reversal of 18067834520 is 2543876081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225847892 + ... + 225847971.

It is an arithmetic number, because the mean of its divisors is an integer number (2540789235).

Almost surely, 2^18067834520 is an apocalyptic number.

18067834520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18067834520 is an abundant number, since it is smaller than the sum of its proper divisors (22584793240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18067834520 is a wasteful number, since it uses less digits than its factorization.

18067834520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451695874 (or 451695870 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 18067834520 in words is "eighteen billion, sixty-seven million, eight hundred thirty-four thousand, five hundred twenty".