40431175064 has 64 divisors (see below), whose sum is σ = 87689122560. Its totient is φ = 17118230400.

The previous prime is 40431175003. The next prime is 40431175087. The reversal of 40431175064 is 46057113404.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2633699 + ... + 2649005.

It is an arithmetic number, because the mean of its divisors is an integer number (1370142540).

Almost surely, 2^40431175064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40431175064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43844561280).

40431175064 is an abundant number, since it is smaller than the sum of its proper divisors (47257947496).

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

40431175064 is a wasteful number, since it uses less digits than its factorization.

40431175064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15888 (or 15884 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 40431175064 its reverse (46057113404), we get a palindrome (86488288468).

The spelling of 40431175064 in words is "forty billion, four hundred thirty-one million, one hundred seventy-five thousand, sixty-four".