40294043531899 has 2 divisors, whose sum is σ = 40294043531900. Its totient is φ = 40294043531898.

The previous prime is 40294043531897. The next prime is 40294043531947. The reversal of 40294043531899 is 99813534049204.

40294043531899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40294043531899 - 2¹ = 40294043531897 is a prime.

Together with 40294043531897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40294043531897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20147021765949 + 20147021765950.

It is an arithmetic number, because the mean of its divisors is an integer number (20147021765950).

Almost surely, 2^{40294043531899} is an apocalyptic number.

40294043531899 is a deficient number, since it is larger than the sum of its proper divisors (1).

40294043531899 is an equidigital number, since it uses as much as digits as its factorization.

40294043531899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33592320, while the sum is 61.

The spelling of 40294043531899 in words is "forty trillion, two hundred ninety-four billion, forty-three million, five hundred thirty-one thousand, eight hundred ninety-nine".