7081487985 has 64 divisors (see below), whose sum is σ = 13401158400. Its totient is φ = 3147924480.

The previous prime is 7081487953. The next prime is 7081487999. The reversal of 7081487985 is 5897841807.

7081487985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7081487985 - 2⁵ = 7081487953 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308527 + ... + 330683.

It is an arithmetic number, because the mean of its divisors is an integer number (209393100).

Almost surely, 2^7081487985 is an apocalyptic number.

It is an amenable number.

7081487985 is a deficient number, since it is larger than the sum of its proper divisors (6319670415).

7081487985 is a wasteful number, since it uses less digits than its factorization.

7081487985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338.

The product of its (nonzero) digits is 4515840, while the sum is 57.

The square root of 7081487985 is about 84151.5774361955. The cubic root of 7081487985 is about 1920.3254643036.

The spelling of 7081487985 in words is "seven billion, eighty-one million, four hundred eighty-seven thousand, nine hundred eighty-five".