40443350617 has 4 divisors (see below), whose sum is σ = 40444767796. Its totient is φ = 40441933440.

The previous prime is 40443350599. The next prime is 40443350641. The reversal of 40443350617 is 71605334404.

40443350617 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 can be written as a sum of positive squares in 2 ways, for example, as 17706028096 + 22737322521 = 133064^2 + 150789^2 .

It is a cyclic number.

It is not a de Polignac number, because 40443350617 - 2²⁷ = 40309132889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40443354617) 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, 664884 + ... + 723157.

It is an arithmetic number, because the mean of its divisors is an integer number (10111191949).

Almost surely, 2^40443350617 is an apocalyptic number.

It is an amenable number.

40443350617 is a deficient number, since it is larger than the sum of its proper divisors (1417179).

40443350617 is a wasteful number, since it uses less digits than its factorization.

40443350617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417178.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 40443350617 in words is "forty billion, four hundred forty-three million, three hundred fifty thousand, six hundred seventeen".