9942864587 has 8 divisors (see below), whose sum is σ = 10180122480. Its totient is φ = 9705880800.

The previous prime is 9942864583. The next prime is 9942864601. The reversal of 9942864587 is 7854682499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9942864587 - 2² = 9942864583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9942864583) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5837 + ... + 141137.

It is an arithmetic number, because the mean of its divisors is an integer number (1272515310).

Almost surely, 2^9942864587 is an apocalyptic number.

9942864587 is a deficient number, since it is larger than the sum of its proper divisors (237257893).

9942864587 is a wasteful number, since it uses less digits than its factorization.

9942864587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137053.

The product of its digits is 34836480, while the sum is 62.

The square root of 9942864587 is about 99713.9137081681. The cubic root of 9942864587 is about 2150.3237000991.

The spelling of 9942864587 in words is "nine billion, nine hundred forty-two million, eight hundred sixty-four thousand, five hundred eighty-seven".