6996907549 has 4 divisors (see below), whose sum is σ = 7408490364. Its totient is φ = 6585324736.

The previous prime is 6996907543. The next prime is 6996907663. The reversal of 6996907549 is 9457096996.

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 4386412900 + 2610494649 = 66230^2 + 51093^2 .

It is a cyclic number.

It is not a de Polignac number, because 6996907549 - 2¹¹ = 6996905501 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 (6996907543) 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, 205791382 + ... + 205791415.

It is an arithmetic number, because the mean of its divisors is an integer number (1852122591).

Almost surely, 2^6996907549 is an apocalyptic number.

It is an amenable number.

6996907549 is a deficient number, since it is larger than the sum of its proper divisors (411582815).

6996907549 is a wasteful number, since it uses less digits than its factorization.

6996907549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411582814.

The product of its (nonzero) digits is 33067440, while the sum is 64.

The square root of 6996907549 is about 83647.5196822954. The cubic root of 6996907549 is about 1912.6494438534.

The spelling of 6996907549 in words is "six billion, nine hundred ninety-six million, nine hundred seven thousand, five hundred forty-nine".