64882060261 has 2 divisors, whose sum is σ = 64882060262. Its totient is φ = 64882060260.

The previous prime is 64882060237. The next prime is 64882060291. The reversal of 64882060261 is 16206028846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57777256161 + 7104804100 = 240369^2 + 84290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64882060261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64882060291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32441030130 + 32441030131.

It is an arithmetic number, because the mean of its divisors is an integer number (32441030131).

Almost surely, 2^64882060261 is an apocalyptic number.

It is an amenable number.

64882060261 is a deficient number, since it is larger than the sum of its proper divisors (1).

64882060261 is an equidigital number, since it uses as much as digits as its factorization.

64882060261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 64882060261 in words is "sixty-four billion, eight hundred eighty-two million, sixty thousand, two hundred sixty-one".