40816838545 has 24 divisors (see below), whose sum is σ = 57026032128. Its totient is φ = 27964591200.

The previous prime is 40816838533. The next prime is 40816838591. The reversal of 40816838545 is 54583861804.

It is a happy number.

It is not a de Polignac number, because 40816838545 - 2¹¹ = 40816836497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40816838492 and 40816838501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215760 + ... + 358030.

It is an arithmetic number, because the mean of its divisors is an integer number (2376084672).

Almost surely, 2^40816838545 is an apocalyptic number.

It is an amenable number.

40816838545 is a deficient number, since it is larger than the sum of its proper divisors (16209193583).

40816838545 is a wasteful number, since it uses less digits than its factorization.

40816838545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143461 (or 143454 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 40816838545 in words is "forty billion, eight hundred sixteen million, eight hundred thirty-eight thousand, five hundred forty-five".