7013812849 has 4 divisors (see below), whose sum is σ = 7024235236. Its totient is φ = 7003390464.

The previous prime is 7013812843. The next prime is 7013812903. The reversal of 7013812849 is 9482183107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9482183107 = 67 ⋅141525121.

It can be written as a sum of positive squares in 2 ways, for example, as 1498077025 + 5515735824 = 38705^2 + 74268^2 .

It is a cyclic number.

It is not a de Polignac number, because 7013812849 - 2⁷ = 7013812721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7013812843) 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, 5210184 + ... + 5211529.

It is an arithmetic number, because the mean of its divisors is an integer number (1756058809).

Almost surely, 2^7013812849 is an apocalyptic number.

It is an amenable number.

7013812849 is a deficient number, since it is larger than the sum of its proper divisors (10422387).

7013812849 is a wasteful number, since it uses less digits than its factorization.

7013812849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10422386.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 7013812849 is about 83748.5095330060. The cubic root of 7013812849 is about 1914.1885955691.

The spelling of 7013812849 in words is "seven billion, thirteen million, eight hundred twelve thousand, eight hundred forty-nine".