988987171087 has 8 divisors (see below), whose sum is σ = 1043584463600. Its totient is φ = 934644412224.

The previous prime is 988987171043. The next prime is 988987171177. The reversal of 988987171087 is 780171789889.

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 988987171087 - 2¹⁵ = 988987138319 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 (988987171027) 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, 63625428 + ... + 63640969.

It is an arithmetic number, because the mean of its divisors is an integer number (130448057950).

Almost surely, 2^988987171087 is an apocalyptic number.

988987171087 is a deficient number, since it is larger than the sum of its proper divisors (54597292513).

988987171087 is a wasteful number, since it uses less digits than its factorization.

988987171087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127266825.

The product of its (nonzero) digits is 113799168, while the sum is 73.

The spelling of 988987171087 in words is "nine hundred eighty-eight billion, nine hundred eighty-seven million, one hundred seventy-one thousand, eighty-seven".