34185218538 has 32 divisors (see below), whose sum is σ = 70056000000. Its totient is φ = 11114288640.

The previous prime is 34185218503. The next prime is 34185218539. The reversal of 34185218538 is 83581258143.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (34185218539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078338 + ... + 1109586.

It is an arithmetic number, because the mean of its divisors is an integer number (2189250000).

Almost surely, 2^34185218538 is an apocalyptic number.

34185218538 is an abundant number, since it is smaller than the sum of its proper divisors (35870781462).

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

34185218538 is a wasteful number, since it uses less digits than its factorization.

34185218538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35742.

The product of its digits is 921600, while the sum is 48.

The spelling of 34185218538 in words is "thirty-four billion, one hundred eighty-five million, two hundred eighteen thousand, five hundred thirty-eight".