40801341789 has 40 divisors (see below), whose sum is σ = 65671399640. Its totient is φ = 25095982464.

The previous prime is 40801341743. The next prime is 40801341821. The reversal of 40801341789 is 98714310804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 629156889 + 40172184900 = 25083^2 + 200430^2 .

It is not a de Polignac number, because 40801341789 - 2⁹ = 40801341277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40801341739) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2380719 + ... + 2397795.

It is an arithmetic number, because the mean of its divisors is an integer number (1641784991).

Almost surely, 2^40801341789 is an apocalyptic number.

It is an amenable number.

40801341789 is a deficient number, since it is larger than the sum of its proper divisors (24870057851).

40801341789 is a wasteful number, since it uses less digits than its factorization.

40801341789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19371 (or 19362 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 40801341789 in words is "forty billion, eight hundred one million, three hundred forty-one thousand, seven hundred eighty-nine".