87886716321 has 8 divisors (see below), whose sum is σ = 117331189024. Its totient is φ = 58516693920.

The previous prime is 87886716319. The next prime is 87886716329. The reversal of 87886716321 is 12361768878.

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

It is not a de Polignac number, because 87886716321 - 2¹ = 87886716319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87886716329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18609820 + ... + 18614541.

It is an arithmetic number, because the mean of its divisors is an integer number (14666398628).

Almost surely, 2^87886716321 is an apocalyptic number.

It is an amenable number.

87886716321 is a deficient number, since it is larger than the sum of its proper divisors (29444472703).

87886716321 is a wasteful number, since it uses less digits than its factorization.

87886716321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37225151.

The product of its digits is 5419008, while the sum is 57.

The spelling of 87886716321 in words is "eighty-seven billion, eight hundred eighty-six million, seven hundred sixteen thousand, three hundred twenty-one".