40032799869 has 8 divisors (see below), whose sum is σ = 53927345920. Its totient is φ = 26413393536.

The previous prime is 40032799789. The next prime is 40032799889. The reversal of 40032799869 is 96899723004.

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

It is not a de Polignac number, because 40032799869 - 2²⁸ = 39764364413 is a prime.

It is a super-2 number, since 2×40032799869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40032799889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68784589 + ... + 68785170.

It is an arithmetic number, because the mean of its divisors is an integer number (6740918240).

Almost surely, 2^40032799869 is an apocalyptic number.

It is an amenable number.

40032799869 is a deficient number, since it is larger than the sum of its proper divisors (13894546051).

40032799869 is a wasteful number, since it uses less digits than its factorization.

40032799869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137569859.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 40032799869 in words is "forty billion, thirty-two million, seven hundred ninety-nine thousand, eight hundred sixty-nine".