40518403371 has 24 divisors (see below), whose sum is σ = 60692010080. Its totient is φ = 26027018496.

The previous prime is 40518403337. The next prime is 40518403379. The reversal of 40518403371 is 17330481504.

It is a happy number.

40518403371 is a `hidden beast` number, since 4 + 0 + 518 + 40 + 33 + 71 = 666.

It is not a de Polignac number, because 40518403371 - 2¹³ = 40518395179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40518403379) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 556366 + ... + 624963.

Almost surely, 2^40518403371 is an apocalyptic number.

40518403371 is a deficient number, since it is larger than the sum of its proper divisors (20173606709).

40518403371 is a wasteful number, since it uses less digits than its factorization.

40518403371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181475 (or 1181472 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 40518403371 its reverse (17330481504), we get a palindrome (57848884875).

The spelling of 40518403371 in words is "forty billion, five hundred eighteen million, four hundred three thousand, three hundred seventy-one".