87844065243 has 16 divisors (see below), whose sum is σ = 128061634176. Its totient is φ = 53118640640.

The previous prime is 87844065181. The next prime is 87844065251. The reversal of 87844065243 is 34256044878.

It is a cyclic number.

It is not a de Polignac number, because 87844065243 - 2⁹ = 87844064731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87844065263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2989830 + ... + 3019067.

It is an arithmetic number, because the mean of its divisors is an integer number (8003852136).

Almost surely, 2^87844065243 is an apocalyptic number.

87844065243 is a deficient number, since it is larger than the sum of its proper divisors (40217568933).

87844065243 is a wasteful number, since it uses less digits than its factorization.

87844065243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6009354.

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 87844065243 in words is "eighty-seven billion, eight hundred forty-four million, sixty-five thousand, two hundred forty-three".