87318351138 has 8 divisors (see below), whose sum is σ = 174636702288. Its totient is φ = 29106117044.

The previous prime is 87318351137. The next prime is 87318351143. The reversal of 87318351138 is 83115381378.

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

87318351138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (87318351137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7276529256 + ... + 7276529267.

It is an arithmetic number, because the mean of its divisors is an integer number (21829587786).

Almost surely, 2^87318351138 is an apocalyptic number.

87318351138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87318351138 is a wasteful number, since it uses less digits than its factorization.

87318351138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553058528.

The product of its digits is 483840, while the sum is 48.

The spelling of 87318351138 in words is "eighty-seven billion, three hundred eighteen million, three hundred fifty-one thousand, one hundred thirty-eight".