43243512140 has 12 divisors (see below), whose sum is σ = 90811375536. Its totient is φ = 17297404848.

The previous prime is 43243512113. The next prime is 43243512173. The reversal of 43243512140 is 4121534234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081087784 + ... + 1081087823.

It is an arithmetic number, because the mean of its divisors is an integer number (7567614628).

Almost surely, 2^43243512140 is an apocalyptic number.

It is an amenable number.

43243512140 is an abundant number, since it is smaller than the sum of its proper divisors (47567863396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43243512140 is a wasteful number, since it uses less digits than its factorization.

43243512140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162175616 (or 2162175614 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 43243512140 in words is "forty-three billion, two hundred forty-three million, five hundred twelve thousand, one hundred forty".