40543254345 has 32 divisors (see below), whose sum is σ = 70815596544. Its totient is φ = 19643672000.

The previous prime is 40543254343. The next prime is 40543254359. The reversal of 40543254345 is 54345234504.

It is not a de Polignac number, because 40543254345 - 2¹ = 40543254343 is a prime.

It is a super-2 number, since 2×40543254345² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40543254343) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 154744 + ... + 324086.

It is an arithmetic number, because the mean of its divisors is an integer number (2212987392).

Almost surely, 2^40543254345 is an apocalyptic number.

It is an amenable number.

40543254345 is a deficient number, since it is larger than the sum of its proper divisors (30272342199).

40543254345 is a wasteful number, since it uses less digits than its factorization.

40543254345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170813.

The product of its (nonzero) digits is 576000, while the sum is 39.

Adding to 40543254345 its reverse (54345234504), we get a palindrome (94888488849).

The spelling of 40543254345 in words is "forty billion, five hundred forty-three million, two hundred fifty-four thousand, three hundred forty-five".