40294043531909 has 8 divisors (see below), whose sum is σ = 41151821208960. Its totient is φ = 39436284921696.

The previous prime is 40294043531899. The next prime is 40294043531947. The reversal of 40294043531909 is 90913534049204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40294043531909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40294043531999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454019 + ... + 8988560.

It is an arithmetic number, because the mean of its divisors is an integer number (5143977651120).

Almost surely, 2^{40294043531909} is an apocalyptic number.

It is an amenable number.

40294043531909 is a deficient number, since it is larger than the sum of its proper divisors (857777677051).

40294043531909 is an equidigital number, since it uses as much as digits as its factorization.

40294043531909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9533419.

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 40294043531909 in words is "forty trillion, two hundred ninety-four billion, forty-three million, five hundred thirty-one thousand, nine hundred nine".