87441697776 has 160 divisors (see below), whose sum is σ = 233625047040. Its totient is φ = 28164505600.

The previous prime is 87441697769. The next prime is 87441697823. The reversal of 87441697776 is 67779614478.

It is a happy number.

It is a congruent number.

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, 132688135 + ... + 132688793.

It is an arithmetic number, because the mean of its divisors is an integer number (1460156544).

Almost surely, 2^87441697776 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 87441697776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116812523520).

87441697776 is an abundant number, since it is smaller than the sum of its proper divisors (146183349264).

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

87441697776 is a wasteful number, since it uses less digits than its factorization.

87441697776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1249 counting only the distinct ones).

The product of its digits is 99574272, while the sum is 66.

The spelling of 87441697776 in words is "eighty-seven billion, four hundred forty-one million, six hundred ninety-seven thousand, seven hundred seventy-six".