64731542675251 has 2 divisors, whose sum is σ = 64731542675252. Its totient is φ = 64731542675250.

The previous prime is 64731542675197. The next prime is 64731542675273. The reversal of 64731542675251 is 15257624513746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64731542675251 - 2²⁵ = 64731509120819 is a prime.

It is not a weakly prime, because it can be changed into another prime (64731542675651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32365771337625 + 32365771337626.

It is an arithmetic number, because the mean of its divisors is an integer number (32365771337626).

Almost surely, 2^{64731542675251} is an apocalyptic number.

64731542675251 is a deficient number, since it is larger than the sum of its proper divisors (1).

64731542675251 is an equidigital number, since it uses as much as digits as its factorization.

64731542675251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336000, while the sum is 58.

The spelling of 64731542675251 in words is "sixty-four trillion, seven hundred thirty-one billion, five hundred forty-two million, six hundred seventy-five thousand, two hundred fifty-one".