64824522557 has 2 divisors, whose sum is σ = 64824522558. Its totient is φ = 64824522556.

The previous prime is 64824522517. The next prime is 64824522589. The reversal of 64824522557 is 75522542846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59619477241 + 5205045316 = 244171^2 + 72146^2 .

It is a cyclic number.

It is not a de Polignac number, because 64824522557 - 2²² = 64820328253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64824522517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32412261278 + 32412261279.

It is an arithmetic number, because the mean of its divisors is an integer number (32412261279).

Almost surely, 2^64824522557 is an apocalyptic number.

It is an amenable number.

64824522557 is a deficient number, since it is larger than the sum of its proper divisors (1).

64824522557 is an equidigital number, since it uses as much as digits as its factorization.

64824522557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376000, while the sum is 50.

The spelling of 64824522557 in words is "sixty-four billion, eight hundred twenty-four million, five hundred twenty-two thousand, five hundred fifty-seven".