7066479139 has 4 divisors (see below), whose sum is σ = 7070824024. Its totient is φ = 7062134256.

The previous prime is 7066479113. The next prime is 7066479157. The reversal of 7066479139 is 9319746607.

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

It is a cyclic number.

It is not a de Polignac number, because 7066479139 - 2⁷ = 7066479011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7066479169) 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, 2170002 + ... + 2173255.

It is an arithmetic number, because the mean of its divisors is an integer number (1767706006).

Almost surely, 2^7066479139 is an apocalyptic number.

7066479139 is a deficient number, since it is larger than the sum of its proper divisors (4344885).

7066479139 is a wasteful number, since it uses less digits than its factorization.

7066479139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344884.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 7066479139 is about 84062.3526853728. The cubic root of 7066479139 is about 1918.9678280089.

The spelling of 7066479139 in words is "seven billion, sixty-six million, four hundred seventy-nine thousand, one hundred thirty-nine".