40351218443 has 8 divisors (see below), whose sum is σ = 40933601280. Its totient is φ = 39770625960.

The previous prime is 40351218433. The next prime is 40351218451. The reversal of 40351218443 is 34481215304.

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

It is a cyclic number.

It is not a de Polignac number, because 40351218443 - 2¹⁸ = 40350956299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40351218433) 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 in 7 ways as a sum of consecutive naturals, for example, 402155 + ... + 492372.

It is an arithmetic number, because the mean of its divisors is an integer number (5116700160).

Almost surely, 2^40351218443 is an apocalyptic number.

40351218443 is a deficient number, since it is larger than the sum of its proper divisors (582382837).

40351218443 is an equidigital number, since it uses as much as digits as its factorization.

40351218443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895177.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 40351218443 in words is "forty billion, three hundred fifty-one million, two hundred eighteen thousand, four hundred forty-three".