40317762091 has 4 divisors (see below), whose sum is σ = 41301122184. Its totient is φ = 39334402000.

The previous prime is 40317762083. The next prime is 40317762109. The reversal of 40317762091 is 19026771304.

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

It is a cyclic number.

It is not a de Polignac number, because 40317762091 - 2³ = 40317762083 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40317762031) 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, 491679985 + ... + 491680066.

It is an arithmetic number, because the mean of its divisors is an integer number (10325280546).

Almost surely, 2^40317762091 is an apocalyptic number.

40317762091 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40317762091 is a deficient number, since it is larger than the sum of its proper divisors (983360093).

40317762091 is an equidigital number, since it uses as much as digits as its factorization.

40317762091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983360092.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 40317762091 in words is "forty billion, three hundred seventeen million, seven hundred sixty-two thousand, ninety-one".