87486688221 has 4 divisors (see below), whose sum is σ = 116648917632. Its totient is φ = 58324458812.

The previous prime is 87486688217. The next prime is 87486688229. The reversal of 87486688221 is 12288668478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87486688221 - 2² = 87486688217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87486688229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14581114701 + ... + 14581114706.

It is an arithmetic number, because the mean of its divisors is an integer number (29162229408).

Almost surely, 2^87486688221 is an apocalyptic number.

It is an amenable number.

87486688221 is a deficient number, since it is larger than the sum of its proper divisors (29162229411).

87486688221 is a wasteful number, since it uses less digits than its factorization.

87486688221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29162229410.

The product of its digits is 16515072, while the sum is 60.

The spelling of 87486688221 in words is "eighty-seven billion, four hundred eighty-six million, six hundred eighty-eight thousand, two hundred twenty-one".