40491839184216 has 96 divisors (see below), whose sum is σ = 117758583483840. Its totient is φ = 11568929477952.

The previous prime is 40491839184163. The next prime is 40491839184227. The reversal of 40491839184216 is 61248193819404.

It is a self number, because there is not a number n which added to its sum of digits gives 40491839184216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97262695 + ... + 97678121.

It is an arithmetic number, because the mean of its divisors is an integer number (1226651911290).

Almost surely, 2^{40491839184216} is an apocalyptic number.

It is an amenable number.

40491839184216 is an abundant number, since it is smaller than the sum of its proper divisors (77266744299624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40491839184216 is a wasteful number, since it uses less digits than its factorization.

40491839184216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498333 (or 498322 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 60.

The spelling of 40491839184216 in words is "forty trillion, four hundred ninety-one billion, eight hundred thirty-nine million, one hundred eighty-four thousand, two hundred sixteen".