64432264447 has 12 divisors (see below), whose sum is σ = 68013078096. Its totient is φ = 61031076480.

The previous prime is 64432264439. The next prime is 64432264471. The reversal of 64432264447 is 74446223446.

It is not a de Polignac number, because 64432264447 - 2³ = 64432264439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64432264397 and 64432264406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64432264487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3111247 + ... + 3131887.

It is an arithmetic number, because the mean of its divisors is an integer number (5667756508).

Almost surely, 2^64432264447 is an apocalyptic number.

64432264447 is a deficient number, since it is larger than the sum of its proper divisors (3580813649).

64432264447 is a wasteful number, since it uses less digits than its factorization.

64432264447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29326 (or 29307 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 46.

The spelling of 64432264447 in words is "sixty-four billion, four hundred thirty-two million, two hundred sixty-four thousand, four hundred forty-seven".