87043557317 has 8 divisors (see below), whose sum is σ = 87964800000. Its totient is φ = 86122802304.

The previous prime is 87043557287. The next prime is 87043557323. The reversal of 87043557317 is 71375534078.

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

It is a cyclic number.

It is not a de Polignac number, because 87043557317 - 2⁶ = 87043557253 is a prime.

It is a super-3 number, since 3×87043557317³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87043550317) 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, 242684 + ... + 482682.

It is an arithmetic number, because the mean of its divisors is an integer number (10995600000).

Almost surely, 2^87043557317 is an apocalyptic number.

It is an amenable number.

87043557317 is a deficient number, since it is larger than the sum of its proper divisors (921242683).

87043557317 is a wasteful number, since it uses less digits than its factorization.

87043557317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243835.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 87043557317 in words is "eighty-seven billion, forty-three million, five hundred fifty-seven thousand, three hundred seventeen".