987565334240 has 96 divisors (see below), whose sum is σ = 2411995592160. Its totient is φ = 381861494784.

The previous prime is 987565334237. The next prime is 987565334291. The reversal of 987565334240 is 42433565789.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72545 + ... + 1407264.

It is an arithmetic number, because the mean of its divisors is an integer number (25124954085).

Almost surely, 2^987565334240 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 987565334240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205997796080).

987565334240 is an abundant number, since it is smaller than the sum of its proper divisors (1424430257920).

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

987565334240 is a wasteful number, since it uses less digits than its factorization.

987565334240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479964 (or 1479956 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 987565334240 in words is "nine hundred eighty-seven billion, five hundred sixty-five million, three hundred thirty-four thousand, two hundred forty".