6951275449 has 4 divisors (see below), whose sum is σ = 6951457060. Its totient is φ = 6951093840.

The previous prime is 6951275413. The next prime is 6951275489. The reversal of 6951275449 is 9445721596.

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 1732224400 + 5219051049 = 41620^2 + 72243^2 .

It is a cyclic number.

It is not a de Polignac number, because 6951275449 - 2⁹ = 6951274937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6951275396 and 6951275405.

It is not an unprimeable number, because it can be changed into a prime (6951275489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8562 + ... + 118219.

It is an arithmetic number, because the mean of its divisors is an integer number (1737864265).

Almost surely, 2^6951275449 is an apocalyptic number.

It is an amenable number.

6951275449 is a deficient number, since it is larger than the sum of its proper divisors (181611).

6951275449 is a wasteful number, since it uses less digits than its factorization.

6951275449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181610.

The product of its digits is 2721600, while the sum is 52.

The square root of 6951275449 is about 83374.3092864942. The cubic root of 6951275449 is about 1908.4824297757.

The spelling of 6951275449 in words is "six billion, nine hundred fifty-one million, two hundred seventy-five thousand, four hundred forty-nine".