40315394099 has 2 divisors, whose sum is σ = 40315394100. Its totient is φ = 40315394098.

The previous prime is 40315394081. The next prime is 40315394143. The reversal of 40315394099 is 99049351304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40315394099 - 2¹⁶ = 40315328563 is a prime.

It is not a weakly prime, because it can be changed into another prime (40315394299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157697049 + 20157697050.

It is an arithmetic number, because the mean of its divisors is an integer number (20157697050).

Almost surely, 2^40315394099 is an apocalyptic number.

40315394099 is a deficient number, since it is larger than the sum of its proper divisors (1).

40315394099 is an equidigital number, since it uses as much as digits as its factorization.

40315394099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 40315394099 in words is "forty billion, three hundred fifteen million, three hundred ninety-four thousand, ninety-nine".