40571164219 has 4 divisors (see below), whose sum is σ = 40594576896. Its totient is φ = 40547751544.

The previous prime is 40571164177. The next prime is 40571164237. The reversal of 40571164219 is 91246117504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40571164219 - 2²³ = 40562775611 is a prime.

It is a super-2 number, since 2×40571164219² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40571164259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11703739 + ... + 11707204.

It is an arithmetic number, because the mean of its divisors is an integer number (10148644224).

Almost surely, 2^40571164219 is an apocalyptic number.

40571164219 is a deficient number, since it is larger than the sum of its proper divisors (23412677).

40571164219 is a wasteful number, since it uses less digits than its factorization.

40571164219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23412676.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 40571164219 in words is "forty billion, five hundred seventy-one million, one hundred sixty-four thousand, two hundred nineteen".