64242265357 has 2 divisors, whose sum is σ = 64242265358. Its totient is φ = 64242265356.

The previous prime is 64242265303. The next prime is 64242265387. The reversal of 64242265357 is 75356224246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34884527076 + 29357738281 = 186774^2 + 171341^2 .

It is a cyclic number.

It is not a de Polignac number, because 64242265357 - 2²⁷ = 64108047629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64242265387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32121132678 + 32121132679.

It is an arithmetic number, because the mean of its divisors is an integer number (32121132679).

Almost surely, 2^64242265357 is an apocalyptic number.

It is an amenable number.

64242265357 is a deficient number, since it is larger than the sum of its proper divisors (1).

64242265357 is an equidigital number, since it uses as much as digits as its factorization.

64242265357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 46.

The spelling of 64242265357 in words is "sixty-four billion, two hundred forty-two million, two hundred sixty-five thousand, three hundred fifty-seven".