162543493438 has 16 divisors (see below), whose sum is σ = 255225047040. Its totient is φ = 77542327800.

The previous prime is 162543493423. The next prime is 162543493517. The reversal of 162543493438 is 834394345261.

162543493438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18458058 + ... + 18466861.

It is an arithmetic number, because the mean of its divisors is an integer number (15951565440).

Almost surely, 2^162543493438 is an apocalyptic number.

162543493438 is a deficient number, since it is larger than the sum of its proper divisors (92681553602).

162543493438 is a wasteful number, since it uses less digits than its factorization.

162543493438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36925023.

The product of its digits is 7464960, while the sum is 52.

The spelling of 162543493438 in words is "one hundred sixty-two billion, five hundred forty-three million, four hundred ninety-three thousand, four hundred thirty-eight".