87361722550 has 48 divisors (see below), whose sum is σ = 164728108512. Its totient is φ = 34466624000.

The previous prime is 87361722527. The next prime is 87361722551. The reversal of 87361722550 is 5522716378.

It is a self number, because there is not a number n which added to its sum of digits gives 87361722550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87361722551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1295262 + ... + 1361038.

It is an arithmetic number, because the mean of its divisors is an integer number (3431835594).

Almost surely, 2^87361722550 is an apocalyptic number.

87361722550 is a deficient number, since it is larger than the sum of its proper divisors (77366385962).

87361722550 is a wasteful number, since it uses less digits than its factorization.

87361722550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66153 (or 66148 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 87361722550 in words is "eighty-seven billion, three hundred sixty-one million, seven hundred twenty-two thousand, five hundred fifty".