40840807471 has 4 divisors (see below), whose sum is σ = 41114907000. Its totient is φ = 40566707944.

The previous prime is 40840807451. The next prime is 40840807487. The reversal of 40840807471 is 17470804804.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40840807471 is a prime.

It is a super-3 number, since 3×40840807471³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40840807451) 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, 137049541 + ... + 137049838.

It is an arithmetic number, because the mean of its divisors is an integer number (10278726750).

Almost surely, 2^40840807471 is an apocalyptic number.

40840807471 is a deficient number, since it is larger than the sum of its proper divisors (274099529).

40840807471 is a wasteful number, since it uses less digits than its factorization.

40840807471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274099528.

The product of its (nonzero) digits is 200704, while the sum is 43.

The spelling of 40840807471 in words is "forty billion, eight hundred forty million, eight hundred seven thousand, four hundred seventy-one".