40545344543 has 4 divisors (see below), whose sum is σ = 44231284968. Its totient is φ = 36859404120.

The previous prime is 40545344533. The next prime is 40545344591. The reversal of 40545344543 is 34544354504.

40545344543 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 is not a de Polignac number, because 40545344543 - 2²⁴ = 40528567327 is a prime.

It is a super-2 number, since 2×40545344543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40545344543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40545344513) 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, 1842970196 + ... + 1842970217.

It is an arithmetic number, because the mean of its divisors is an integer number (11057821242).

Almost surely, 2^40545344543 is an apocalyptic number.

40545344543 is a deficient number, since it is larger than the sum of its proper divisors (3685940425).

40545344543 is a wasteful number, since it uses less digits than its factorization.

40545344543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685940424.

The product of its (nonzero) digits is 1152000, while the sum is 41.

The spelling of 40545344543 in words is "forty billion, five hundred forty-five million, three hundred forty-four thousand, five hundred forty-three".