40665475419 has 8 divisors (see below), whose sum is σ = 54565988880. Its totient is φ = 26937639456.

The previous prime is 40665475397. The next prime is 40665475493. The reversal of 40665475419 is 91457456604.

It is a happy number.

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

It is not a de Polignac number, because 40665475419 - 2¹⁵ = 40665442651 is a prime.

It is a super-2 number, since 2×40665475419² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40665471419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43168824 + ... + 43169765.

It is an arithmetic number, because the mean of its divisors is an integer number (6820748610).

Almost surely, 2^40665475419 is an apocalyptic number.

40665475419 is a deficient number, since it is larger than the sum of its proper divisors (13900513461).

40665475419 is a wasteful number, since it uses less digits than its factorization.

40665475419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86338749.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 40665475419 in words is "forty billion, six hundred sixty-five million, four hundred seventy-five thousand, four hundred nineteen".