42389755087 has 4 divisors (see below), whose sum is σ = 42866044560. Its totient is φ = 41913465616.

The previous prime is 42389755019. The next prime is 42389755099. The reversal of 42389755087 is 78055798324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42389755087 - 2⁷ = 42389754959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42389755487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238144603 + ... + 238144780.

It is an arithmetic number, because the mean of its divisors is an integer number (10716511140).

Almost surely, 2^42389755087 is an apocalyptic number.

42389755087 is a deficient number, since it is larger than the sum of its proper divisors (476289473).

42389755087 is an equidigital number, since it uses as much as digits as its factorization.

42389755087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476289472.

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 42389755087 in words is "forty-two billion, three hundred eighty-nine million, seven hundred fifty-five thousand, eighty-seven".