40447743743 has 4 divisors (see below), whose sum is σ = 44124811368. Its totient is φ = 36770676120.

The previous prime is 40447743733. The next prime is 40447743797. The reversal of 40447743743 is 34734774404.

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

It is a cyclic number.

It is not a de Polignac number, because 40447743743 - 2⁴ = 40447743727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447743703) 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, 1838533796 + ... + 1838533817.

It is an arithmetic number, because the mean of its divisors is an integer number (11031202842).

Almost surely, 2^40447743743 is an apocalyptic number.

40447743743 is a deficient number, since it is larger than the sum of its proper divisors (3677067625).

40447743743 is a wasteful number, since it uses less digits than its factorization.

40447743743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677067624.

The product of its (nonzero) digits is 3161088, while the sum is 47.

The spelling of 40447743743 in words is "forty billion, four hundred forty-seven million, seven hundred forty-three thousand, seven hundred forty-three".