687335480080 has 20 divisors (see below), whose sum is σ = 1598054991372. Its totient is φ = 274934192000.

The previous prime is 687335480063. The next prime is 687335480087. The reversal of 687335480080 is 80084533786.

It can be written as a sum of positive squares in 2 ways, for example, as 158416736256 + 528918743824 = 398016^2 + 727268^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (687335480087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295846671 + ... + 4295846830.

Almost surely, 2^687335480080 is an apocalyptic number.

It is an amenable number.

687335480080 is an abundant number, since it is smaller than the sum of its proper divisors (910719511292).

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

687335480080 is a wasteful number, since it uses less digits than its factorization.

687335480080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591693514 (or 8591693508 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 687335480080 in words is "six hundred eighty-seven billion, three hundred thirty-five million, four hundred eighty thousand, eighty".