7067996813 has 4 divisors (see below), whose sum is σ = 7069617468. Its totient is φ = 7066376160.

The previous prime is 7067996801. The next prime is 7067996833. The reversal of 7067996813 is 3186997607.

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 1805655049 + 5262341764 = 42493^2 + 72542^2 .

It is a cyclic number.

It is not a de Polignac number, because 7067996813 - 2⁴ = 7067996797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7067996833) 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, 803768 + ... + 812513.

It is an arithmetic number, because the mean of its divisors is an integer number (1767404367).

Almost surely, 2^7067996813 is an apocalyptic number.

It is an amenable number.

7067996813 is a deficient number, since it is larger than the sum of its proper divisors (1620655).

7067996813 is a wasteful number, since it uses less digits than its factorization.

7067996813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620654.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 7067996813 is about 84071.3792738052. The cubic root of 7067996813 is about 1919.1051976499.

The spelling of 7067996813 in words is "seven billion, sixty-seven million, nine hundred ninety-six thousand, eight hundred thirteen".