43140855849 has 32 divisors (see below), whose sum is σ = 72708652800. Its totient is φ = 22140594432.

The previous prime is 43140855839. The next prime is 43140855853. The reversal of 43140855849 is 94855804134.

It is not a de Polignac number, because 43140855849 - 2⁷ = 43140855721 is a prime.

It is a super-2 number, since 2×43140855849² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43140855829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2125374 + ... + 2145575.

It is an arithmetic number, because the mean of its divisors is an integer number (2272145400).

Almost surely, 2^43140855849 is an apocalyptic number.

It is an amenable number.

43140855849 is a deficient number, since it is larger than the sum of its proper divisors (29567796951).

43140855849 is a wasteful number, since it uses less digits than its factorization.

43140855849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271009.

The product of its (nonzero) digits is 2764800, while the sum is 51.

It can be divided in two parts, 431 and 40855849, that added together give a triangular number (40856280 = T₉₀₃₉).

The spelling of 43140855849 in words is "forty-three billion, one hundred forty million, eight hundred fifty-five thousand, eight hundred forty-nine".