40716323391 has 16 divisors (see below), whose sum is σ = 58361587200. Its totient is φ = 25168431168.

The previous prime is 40716323387. The next prime is 40716323407. The reversal of 40716323391 is 19332361704.

It is not a de Polignac number, because 40716323391 - 2² = 40716323387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40716323381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596486 + ... + 7601843.

It is an arithmetic number, because the mean of its divisors is an integer number (3647599200).

Almost surely, 2^40716323391 is an apocalyptic number.

40716323391 is a deficient number, since it is larger than the sum of its proper divisors (17645263809).

40716323391 is a wasteful number, since it uses less digits than its factorization.

40716323391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15198398.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 40716323391 in words is "forty billion, seven hundred sixteen million, three hundred twenty-three thousand, three hundred ninety-one".