87686474177284 has 12 divisors (see below), whose sum is σ = 153451666120284. Its totient is φ = 43843141000064.

The previous prime is 87686474177273. The next prime is 87686474177287. The reversal of 87686474177284 is 48277147468678.

It can be written as a sum of positive squares in 2 ways, for example, as 80391451312384 + 7295022864900 = 8966128^2 + 2700930^2 .

It is not an unprimeable number, because it can be changed into a prime (87686474177287) 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, 21949009 + ... + 25634584.

It is an arithmetic number, because the mean of its divisors is an integer number (12787638843357).

Almost surely, 2^{87686474177284} is an apocalyptic number.

It is an amenable number.

87686474177284 is a deficient number, since it is larger than the sum of its proper divisors (65765191943000).

87686474177284 is a wasteful number, since it uses less digits than its factorization.

87686474177284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48044294 (or 48044292 counting only the distinct ones).

The product of its digits is 5664669696, while the sum is 79.

The spelling of 87686474177284 in words is "eighty-seven trillion, six hundred eighty-six billion, four hundred seventy-four million, one hundred seventy-seven thousand, two hundred eighty-four".