6849874261 has 2 divisors, whose sum is σ = 6849874262. Its totient is φ = 6849874260.

The previous prime is 6849874201. The next prime is 6849874267. The reversal of 6849874261 is 1624789486.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3877552900 + 2972321361 = 62270^2 + 54519^2 .

It is a cyclic number.

It is not a de Polignac number, because 6849874261 - 2²⁹ = 6313003349 is a prime.

It is a super-2 number, since 2×6849874261² = 93841554783020592242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6849874267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424937130 + 3424937131.

It is an arithmetic number, because the mean of its divisors is an integer number (3424937131).

Almost surely, 2^6849874261 is an apocalyptic number.

It is an amenable number.

6849874261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6849874261 is an equidigital number, since it uses as much as digits as its factorization.

6849874261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 55.

The square root of 6849874261 is about 82763.9671656694. The cubic root of 6849874261 is about 1899.1569908413.

The spelling of 6849874261 in words is "six billion, eight hundred forty-nine million, eight hundred seventy-four thousand, two hundred sixty-one".