6849872577 has 12 divisors (see below), whose sum is σ = 10476275940. Its totient is φ = 4297959168.

The previous prime is 6849872569. The next prime is 6849872597. The reversal of 6849872577 is 7752789486.

6849872577 is a `hidden beast` number, since 6 + 8 + 498 + 72 + 5 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4561111296 + 2288761281 = 67536^2 + 47841^2 .

It is not a de Polignac number, because 6849872577 - 2³ = 6849872569 is a prime.

It is a super-2 number, since 2×6849872577² = 93841508642273241858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6849872507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22385052 + ... + 22385357.

It is an arithmetic number, because the mean of its divisors is an integer number (873022995).

Almost surely, 2^6849872577 is an apocalyptic number.

It is an amenable number.

6849872577 is a deficient number, since it is larger than the sum of its proper divisors (3626403363).

6849872577 is a wasteful number, since it uses less digits than its factorization.

6849872577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44770432 (or 44770429 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The square root of 6849872577 is about 82763.9569921593. The cubic root of 6849872577 is about 1899.1568352093.

The spelling of 6849872577 in words is "six billion, eight hundred forty-nine million, eight hundred seventy-two thousand, five hundred seventy-seven".