87550804194 has 64 divisors (see below), whose sum is σ = 204452198400. Its totient is φ = 24983637840.

The previous prime is 87550804177. The next prime is 87550804223. The reversal of 87550804194 is 49140805578.

It is a super-2 number, since 2×87550804194² (a number of 23 digits) contains 22 as substring.

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, 1667889 + ... + 1719579.

It is an arithmetic number, because the mean of its divisors is an integer number (3194565600).

Almost surely, 2^87550804194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87550804194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102226099200).

87550804194 is an abundant number, since it is smaller than the sum of its proper divisors (116901394206).

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

87550804194 is a wasteful number, since it uses less digits than its factorization.

87550804194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52540 (or 52526 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 87550804194 in words is "eighty-seven billion, five hundred fifty million, eight hundred four thousand, one hundred ninety-four".