40315851907 has 4 divisors (see below), whose sum is σ = 40325126400. Its totient is φ = 40306577416.

The previous prime is 40315851887. The next prime is 40315851913. The reversal of 40315851907 is 70915851304.

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 40315851907 - 2¹⁵ = 40315819139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40315854907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630723 + ... + 4639420.

It is an arithmetic number, because the mean of its divisors is an integer number (10081281600).

Almost surely, 2^40315851907 is an apocalyptic number.

40315851907 is a deficient number, since it is larger than the sum of its proper divisors (9274493).

40315851907 is an equidigital number, since it uses as much as digits as its factorization.

40315851907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9274492.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 40315851907 in words is "forty billion, three hundred fifteen million, eight hundred fifty-one thousand, nine hundred seven".