987795000271 has 4 divisors (see below), whose sum is σ = 991440000544. Its totient is φ = 984150000000.

The previous prime is 987795000209. The next prime is 987795000341. The reversal of 987795000271 is 172000597789.

It is a semiprime because it is the product of two primes.

It is a 8-Lehmer number, since φ(987795000271) divides (987795000271-1)⁸.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987795000271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987795003271) 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, 1822499730 + ... + 1822500271.

It is an arithmetic number, because the mean of its divisors is an integer number (247860000136).

Almost surely, 2^987795000271 is an apocalyptic number.

987795000271 is a deficient number, since it is larger than the sum of its proper divisors (3645000273).

987795000271 is a wasteful number, since it uses less digits than its factorization.

987795000271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645000272.

The product of its (nonzero) digits is 2222640, while the sum is 55.

The spelling of 987795000271 in words is "nine hundred eighty-seven billion, seven hundred ninety-five million, two hundred seventy-one", and thus it is an aban number.