40371916505 has 8 divisors (see below), whose sum is σ = 48754875912. Its totient is φ = 32091815808.

The previous prime is 40371916499. The next prime is 40371916549. The reversal of 40371916505 is 50561917304.

It can be written as a sum of positive squares in 4 ways, for example, as 5745033616 + 34626882889 = 75796^2 + 186083^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40371916505 - 2⁶ = 40371916441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25713812 + ... + 25715381.

It is an arithmetic number, because the mean of its divisors is an integer number (6094359489).

Almost surely, 2^40371916505 is an apocalyptic number.

It is an amenable number.

40371916505 is a deficient number, since it is larger than the sum of its proper divisors (8382959407).

40371916505 is a wasteful number, since it uses less digits than its factorization.

40371916505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51429355.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 40371916505 in words is "forty billion, three hundred seventy-one million, nine hundred sixteen thousand, five hundred five".