43305642555242 has 4 divisors (see below), whose sum is σ = 64958463832866. Its totient is φ = 21652821277620.

The previous prime is 43305642555187. The next prime is 43305642555281. The reversal of 43305642555242 is 24255524650334.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22408758296521 + 20896884258721 = 4733789^2 + 4571311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10826410638809 + ... + 10826410638812.

Almost surely, 2^{43305642555242} is an apocalyptic number.

43305642555242 is a deficient number, since it is larger than the sum of its proper divisors (21652821277624).

43305642555242 is a wasteful number, since it uses less digits than its factorization.

43305642555242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21652821277623.

The product of its (nonzero) digits is 17280000, while the sum is 50.

The spelling of 43305642555242 in words is "forty-three trillion, three hundred five billion, six hundred forty-two million, five hundred fifty-five thousand, two hundred forty-two".