43785917242 has 16 divisors (see below), whose sum is σ = 66812804064. Its totient is φ = 21515598000.

The previous prime is 43785917239. The next prime is 43785917257. The reversal of 43785917242 is 24271958734.

It is a self number, because there is not a number n which added to its sum of digits gives 43785917242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10384 + ... + 296107.

It is an arithmetic number, because the mean of its divisors is an integer number (4175800254).

Almost surely, 2^43785917242 is an apocalyptic number.

43785917242 is a deficient number, since it is larger than the sum of its proper divisors (23026886822).

43785917242 is a wasteful number, since it uses less digits than its factorization.

43785917242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307725.

The product of its digits is 3386880, while the sum is 52.

The spelling of 43785917242 in words is "forty-three billion, seven hundred eighty-five million, nine hundred seventeen thousand, two hundred forty-two".