40065143793 has 8 divisors (see below), whose sum is σ = 53426451456. Its totient is φ = 26706966000.

The previous prime is 40065143791. The next prime is 40065143803. The reversal of 40065143793 is 39734156004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40065143793 - 2¹ = 40065143791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40065143791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752433 + ... + 803918.

It is an arithmetic number, because the mean of its divisors is an integer number (6678306432).

Almost surely, 2^40065143793 is an apocalyptic number.

It is an amenable number.

40065143793 is a deficient number, since it is larger than the sum of its proper divisors (13361307663).

40065143793 is a wasteful number, since it uses less digits than its factorization.

40065143793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564935.

The product of its (nonzero) digits is 272160, while the sum is 42.

Adding to 40065143793 its reverse (39734156004), we get a palindrome (79799299797).

It can be divided in two parts, 400651 and 43793, that added together give a palindrome (444444).

The spelling of 40065143793 in words is "forty billion, sixty-five million, one hundred forty-three thousand, seven hundred ninety-three".