6542834261 has 2 divisors, whose sum is σ = 6542834262. Its totient is φ = 6542834260.

The previous prime is 6542834231. The next prime is 6542834279. The reversal of 6542834261 is 1624382456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4431431761 + 2111402500 = 66569^2 + 45950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6542834261 is a prime.

It is a super-2 number, since 2×6542834261² = 85617360333830832242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6542834231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271417130 + 3271417131.

It is an arithmetic number, because the mean of its divisors is an integer number (3271417131).

Almost surely, 2^6542834261 is an apocalyptic number.

It is an amenable number.

6542834261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542834261 is an equidigital number, since it uses as much as digits as its factorization.

6542834261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 41.

The square root of 6542834261 is about 80887.7880832453. The cubic root of 6542834261 is about 1870.3460769113.

The spelling of 6542834261 in words is "six billion, five hundred forty-two million, eight hundred thirty-four thousand, two hundred sixty-one".