6849771089 has 4 divisors (see below), whose sum is σ = 7828309824. Its totient is φ = 5871232356.

The previous prime is 6849771011. The next prime is 6849771101. The reversal of 6849771089 is 9801779486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9801779486 = 2 ⋅4900889743.

It is a cyclic number.

It is not a de Polignac number, because 6849771089 - 2¹² = 6849766993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6849771389) 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, 489269357 + ... + 489269370.

It is an arithmetic number, because the mean of its divisors is an integer number (1957077456).

Almost surely, 2^6849771089 is an apocalyptic number.

It is an amenable number.

6849771089 is a deficient number, since it is larger than the sum of its proper divisors (978538735).

6849771089 is an equidigital number, since it uses as much as digits as its factorization.

6849771089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978538734.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The square root of 6849771089 is about 82763.3438727556. The cubic root of 6849771089 is about 1899.1474558338.

The spelling of 6849771089 in words is "six billion, eight hundred forty-nine million, seven hundred seventy-one thousand, eighty-nine".