40043861347 has 4 divisors (see below), whose sum is σ = 45764412976. Its totient is φ = 34323309720.

The previous prime is 40043861317. The next prime is 40043861393. The reversal of 40043861347 is 74316834004.

40043861347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40043861347 - 2²³ = 40035472739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40043861317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2860275804 + ... + 2860275817.

It is an arithmetic number, because the mean of its divisors is an integer number (11441103244).

Almost surely, 2^40043861347 is an apocalyptic number.

40043861347 is a deficient number, since it is larger than the sum of its proper divisors (5720551629).

40043861347 is an equidigital number, since it uses as much as digits as its factorization.

40043861347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720551628.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 40043861347 in words is "forty billion, forty-three million, eight hundred sixty-one thousand, three hundred forty-seven".