64263030140321 has 2 divisors, whose sum is σ = 64263030140322. Its totient is φ = 64263030140320.

The previous prime is 64263030140303. The next prime is 64263030140347. The reversal of 64263030140321 is 12304103036246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64057036702096 + 205993438225 = 8003564^2 + 453865^2 .

It is a cyclic number.

It is not a de Polignac number, because 64263030140321 - 2²² = 64263025946017 is a prime.

It is not a weakly prime, because it can be changed into another prime (64263030140381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32131515070160 + 32131515070161.

It is an arithmetic number, because the mean of its divisors is an integer number (32131515070161).

Almost surely, 2^{64263030140321} is an apocalyptic number.

It is an amenable number.

64263030140321 is a deficient number, since it is larger than the sum of its proper divisors (1).

64263030140321 is an equidigital number, since it uses as much as digits as its factorization.

64263030140321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 64263030140321 its reverse (12304103036246), we get a palindrome (76567133176567).

The spelling of 64263030140321 in words is "sixty-four trillion, two hundred sixty-three billion, thirty million, one hundred forty thousand, three hundred twenty-one".