87387051576 has 256 divisors, whose sum is σ = 257929920000. Its totient is φ = 24391065600.

The previous prime is 87387051551. The next prime is 87387051607. The reversal of 87387051576 is 67515078378.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27230260 + ... + 27233468.

It is an arithmetic number, because the mean of its divisors is an integer number (1007538750).

Almost surely, 2^87387051576 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 87387051576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128964960000).

87387051576 is an abundant number, since it is smaller than the sum of its proper divisors (170542868424).

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

87387051576 is a wasteful number, since it uses less digits than its factorization.

87387051576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 57.

The spelling of 87387051576 in words is "eighty-seven billion, three hundred eighty-seven million, fifty-one thousand, five hundred seventy-six".