87318350987 has 6 divisors (see below), whose sum is σ = 101574408348. Its totient is φ = 74844300804.

The previous prime is 87318350981. The next prime is 87318350993. The reversal of 87318350987 is 78905381378.

It is an interprime number because it is at equal distance from previous prime (87318350981) and next prime (87318350993).

It is not a de Polignac number, because 87318350987 - 2¹⁴ = 87318334603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87318350981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 891003533 + ... + 891003630.

It is an arithmetic number, because the mean of its divisors is an integer number (16929068058).

Almost surely, 2^87318350987 is an apocalyptic number.

87318350987 is a deficient number, since it is larger than the sum of its proper divisors (14256057361).

87318350987 is a wasteful number, since it uses less digits than its factorization.

87318350987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782007177 (or 1782007170 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 87318350987 in words is "eighty-seven billion, three hundred eighteen million, three hundred fifty thousand, nine hundred eighty-seven".