40188548234 has 8 divisors (see below), whose sum is σ = 61108614660. Its totient is φ = 19819010016.

The previous prime is 40188548221. The next prime is 40188548237. The reversal of 40188548234 is 43284588104.

It can be written as a sum of positive squares in 2 ways, for example, as 36196204009 + 3992344225 = 190253^2 + 63185^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40188548237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137631869 + ... + 137632160.

Almost surely, 2^40188548234 is an apocalyptic number.

40188548234 is a deficient number, since it is larger than the sum of its proper divisors (20920066426).

40188548234 is a wasteful number, since it uses less digits than its factorization.

40188548234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275264104.

The product of its (nonzero) digits is 983040, while the sum is 47.

The spelling of 40188548234 in words is "forty billion, one hundred eighty-eight million, five hundred forty-eight thousand, two hundred thirty-four".