64229771534479 has 2 divisors, whose sum is σ = 64229771534480. Its totient is φ = 64229771534478.

The previous prime is 64229771534459. The next prime is 64229771534497. The reversal of 64229771534479 is 97443517792246.

Together with next prime (64229771534497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64229771534479 - 2⁷ = 64229771534351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64229771534459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32114885767239 + 32114885767240.

It is an arithmetic number, because the mean of its divisors is an integer number (32114885767240).

Almost surely, 2^{64229771534479} is an apocalyptic number.

64229771534479 is a deficient number, since it is larger than the sum of its proper divisors (1).

64229771534479 is an equidigital number, since it uses as much as digits as its factorization.

64229771534479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640120320, while the sum is 70.

The spelling of 64229771534479 in words is "sixty-four trillion, two hundred twenty-nine billion, seven hundred seventy-one million, five hundred thirty-four thousand, four hundred seventy-nine".