40351432543 has 16 divisors (see below), whose sum is σ = 43158263616. Its totient is φ = 37593054720.

The previous prime is 40351432523. The next prime is 40351432547. The reversal of 40351432543 is 34523415304.

It is a happy number.

It is not a de Polignac number, because 40351432543 - 2⁹ = 40351432031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40351432499 and 40351432508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40351432547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6743613 + ... + 6749593.

It is an arithmetic number, because the mean of its divisors is an integer number (2697391476).

Almost surely, 2^40351432543 is an apocalyptic number.

40351432543 is a deficient number, since it is larger than the sum of its proper divisors (2806831073).

40351432543 is a wasteful number, since it uses less digits than its factorization.

40351432543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 40351432543 its reverse (34523415304), we get a palindrome (74874847847).

The spelling of 40351432543 in words is "forty billion, three hundred fifty-one million, four hundred thirty-two thousand, five hundred forty-three".