64394445127 has 2 divisors, whose sum is σ = 64394445128. Its totient is φ = 64394445126.

The previous prime is 64394445113. The next prime is 64394445139. The reversal of 64394445127 is 72154449346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64394445127 - 2⁷ = 64394444999 is a prime.

It is a super-2 number, since 2×64394445127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64394445727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32197222563 + 32197222564.

It is an arithmetic number, because the mean of its divisors is an integer number (32197222564).

Almost surely, 2^64394445127 is an apocalyptic number.

64394445127 is a deficient number, since it is larger than the sum of its proper divisors (1).

64394445127 is an equidigital number, since it uses as much as digits as its factorization.

64394445127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 49.

The spelling of 64394445127 in words is "sixty-four billion, three hundred ninety-four million, four hundred forty-five thousand, one hundred twenty-seven".