6549379199 has 4 divisors (see below), whose sum is σ = 7144777320. Its totient is φ = 5953981080.

The previous prime is 6549379153. The next prime is 6549379201. The reversal of 6549379199 is 9919739456.

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 6549379199 - 2¹⁶ = 6549313663 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 (6549379129) 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, 297699044 + ... + 297699065.

It is an arithmetic number, because the mean of its divisors is an integer number (1786194330).

Almost surely, 2^6549379199 is an apocalyptic number.

6549379199 is a deficient number, since it is larger than the sum of its proper divisors (595398121).

6549379199 is a wasteful number, since it uses less digits than its factorization.

6549379199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595398120.

The product of its digits is 16533720, while the sum is 62.

The square root of 6549379199 is about 80928.2348689257. The cubic root of 6549379199 is about 1870.9695182287.

The spelling of 6549379199 in words is "six billion, five hundred forty-nine million, three hundred seventy-nine thousand, one hundred ninety-nine".