40839008894 has 16 divisors (see below), whose sum is σ = 64238976720. Its totient is φ = 19445307840.

The previous prime is 40839008893. The next prime is 40839008927. The reversal of 40839008894 is 49880093804.

It is a super-2 number, since 2×40839008894² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40839008891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4818512 + ... + 4826979.

It is an arithmetic number, because the mean of its divisors is an integer number (4014936045).

Almost surely, 2^40839008894 is an apocalyptic number.

40839008894 is a deficient number, since it is larger than the sum of its proper divisors (23399967826).

40839008894 is a wasteful number, since it uses less digits than its factorization.

40839008894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645595.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 40839008894 in words is "forty billion, eight hundred thirty-nine million, eight thousand, eight hundred ninety-four".