987085475140 has 96 divisors (see below), whose sum is σ = 2186382643200. Its totient is φ = 373778012160.

The previous prime is 987085475119. The next prime is 987085475153. The reversal of 987085475140 is 41574580789.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66111196 + ... + 66126124.

It is an arithmetic number, because the mean of its divisors is an integer number (22774819200).

Almost surely, 2^987085475140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987085475140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093191321600).

987085475140 is an abundant number, since it is smaller than the sum of its proper divisors (1199297168060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987085475140 is a wasteful number, since it uses less digits than its factorization.

987085475140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17285 (or 17283 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 987085475140 in words is "nine hundred eighty-seven billion, eighty-five million, four hundred seventy-five thousand, one hundred forty".