7858308081 has 32 divisors (see below), whose sum is σ = 11386126080. Its totient is φ = 4792126464.

The previous prime is 7858308071. The next prime is 7858308121. The reversal of 7858308081 is 1808038587.

7858308081 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 7858308081 - 2⁵ = 7858308049 is a prime.

It is a super-2 number, since 2×7858308081² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7858308081.

It is not an unprimeable number, because it can be changed into a prime (7858308001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4481901 + ... + 4483653.

It is an arithmetic number, because the mean of its divisors is an integer number (355816440).

Almost surely, 2^7858308081 is an apocalyptic number.

It is an amenable number.

7858308081 is a deficient number, since it is larger than the sum of its proper divisors (3527817999).

7858308081 is a wasteful number, since it uses less digits than its factorization.

7858308081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 430080, while the sum is 48.

The square root of 7858308081 is about 88647.0985481194. The cubic root of 7858308081 is about 1988.1219355303.

The spelling of 7858308081 in words is "seven billion, eight hundred fifty-eight million, three hundred eight thousand, eighty-one".