6151864261 has 2 divisors, whose sum is σ = 6151864262. Its totient is φ = 6151864260.

The previous prime is 6151864259. The next prime is 6151864331. The reversal of 6151864261 is 1624681516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4557060036 + 1594804225 = 67506^2 + 39935^2 .

It is a cyclic number.

It is not a de Polignac number, because 6151864261 - 2¹ = 6151864259 is a prime.

It is a super-2 number, since 2×6151864261² = 75690867771538152242, which contains 22 as substring.

Together with 6151864259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6151864231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3075932130 + 3075932131.

It is an arithmetic number, because the mean of its divisors is an integer number (3075932131).

Almost surely, 2^6151864261 is an apocalyptic number.

It is an amenable number.

6151864261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6151864261 is an equidigital number, since it uses as much as digits as its factorization.

6151864261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 6151864261 is about 78433.8209001704. The cubic root of 6151864261 is about 1832.3239072986.

The spelling of 6151864261 in words is "six billion, one hundred fifty-one million, eight hundred sixty-four thousand, two hundred sixty-one".