87550690064 has 40 divisors (see below), whose sum is σ = 189060711840. Its totient is φ = 39031884288.

The previous prime is 87550690063. The next prime is 87550690099. The reversal of 87550690064 is 46009605578.

It is a junction number, because it is equal to n+sod(n) for n = 87550689994 and 87550690021.

It is not an unprimeable number, because it can be changed into a prime (87550690061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8465294 + ... + 8475629.

It is an arithmetic number, because the mean of its divisors is an integer number (4726517796).

Almost surely, 2^87550690064 is an apocalyptic number.

It is an amenable number.

87550690064 is an abundant number, since it is smaller than the sum of its proper divisors (101510021776).

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

87550690064 is a wasteful number, since it uses less digits than its factorization.

87550690064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940967 (or 16940961 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 87550690064 in words is "eighty-seven billion, five hundred fifty million, six hundred ninety thousand, sixty-four".