64281885407 has 2 divisors, whose sum is σ = 64281885408. Its totient is φ = 64281885406.

The previous prime is 64281885397. The next prime is 64281885433. The reversal of 64281885407 is 70458818246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64281885407 - 2⁴ = 64281885391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64281885457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32140942703 + 32140942704.

It is an arithmetic number, because the mean of its divisors is an integer number (32140942704).

Almost surely, 2^64281885407 is an apocalyptic number.

64281885407 is a deficient number, since it is larger than the sum of its proper divisors (1).

64281885407 is an equidigital number, since it uses as much as digits as its factorization.

64281885407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 64281885407 in words is "sixty-four billion, two hundred eighty-one million, eight hundred eighty-five thousand, four hundred seven".