40249399613191 has 2 divisors, whose sum is σ = 40249399613192. Its totient is φ = 40249399613190.

The previous prime is 40249399613119. The next prime is 40249399613207. The reversal of 40249399613191 is 19131699394204.

Together with previous prime (40249399613119) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40249399613191 - 2⁹ = 40249399612679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40249399683191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20124699806595 + 20124699806596.

It is an arithmetic number, because the mean of its divisors is an integer number (20124699806596).

Almost surely, 2^{40249399613191} is an apocalyptic number.

40249399613191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40249399613191 is an equidigital number, since it uses as much as digits as its factorization.

40249399613191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11337408, while the sum is 61.

The spelling of 40249399613191 in words is "forty trillion, two hundred forty-nine billion, three hundred ninety-nine million, six hundred thirteen thousand, one hundred ninety-one".