87551229744 has 120 divisors (see below), whose sum is σ = 269795178432. Its totient is φ = 26282674560.

The previous prime is 87551229739. The next prime is 87551229803. The reversal of 87551229744 is 44792215578.

87551229744 is a `hidden beast` number, since 87 + 5 + 512 + 2 + 9 + 7 + 44 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88794 + ... + 427769.

Almost surely, 2^87551229744 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 87551229744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134897589216).

87551229744 is an abundant number, since it is smaller than the sum of its proper divisors (182243948688).

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

87551229744 is a wasteful number, since it uses less digits than its factorization.

87551229744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516695 (or 516686 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 87551229744 in words is "eighty-seven billion, five hundred fifty-one million, two hundred twenty-nine thousand, seven hundred forty-four".