7996945085 has 4 divisors (see below), whose sum is σ = 9596334108. Its totient is φ = 6397556064.

The previous prime is 7996945079. The next prime is 7996945111. The reversal of 7996945085 is 5805496997.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2236438681 + 5760506404 = 47291^2 + 75898^2 .

It is a cyclic number.

It is not a de Polignac number, because 7996945085 - 2²⁰ = 7995896509 is a prime.

It is a super-2 number, since 2×7996945085² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799694504 + ... + 799694513.

It is an arithmetic number, because the mean of its divisors is an integer number (2399083527).

Almost surely, 2^7996945085 is an apocalyptic number.

It is an amenable number.

7996945085 is a deficient number, since it is larger than the sum of its proper divisors (1599389023).

7996945085 is a wasteful number, since it uses less digits than its factorization.

7996945085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599389022.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The square root of 7996945085 is about 89425.6399753449. The cubic root of 7996945085 is about 1999.7453913386.

The spelling of 7996945085 in words is "seven billion, nine hundred ninety-six million, nine hundred forty-five thousand, eighty-five".