40194686099 has 2 divisors, whose sum is σ = 40194686100. Its totient is φ = 40194686098.

The previous prime is 40194686071. The next prime is 40194686123. The reversal of 40194686099 is 99068649104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40194686099 is a prime.

It is a super-2 number, since 2×40194686099² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40194686009) by changing a digit.

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 as a sum of consecutive naturals, namely, 20097343049 + 20097343050.

It is an arithmetic number, because the mean of its divisors is an integer number (20097343050).

Almost surely, 2^40194686099 is an apocalyptic number.

40194686099 is a deficient number, since it is larger than the sum of its proper divisors (1).

40194686099 is an equidigital number, since it uses as much as digits as its factorization.

40194686099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 40194686099 in words is "forty billion, one hundred ninety-four million, six hundred eighty-six thousand, ninety-nine".