64434568895 has 8 divisors (see below), whose sum is σ = 79411252704. Its totient is φ = 50154475104.

The previous prime is 64434568889. The next prime is 64434568901. The reversal of 64434568895 is 59886543446.

It is an interprime number because it is at equal distance from previous prime (64434568889) and next prime (64434568901).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64434568895 - 2¹⁶ = 64434503359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174147299 + ... + 174147668.

It is an arithmetic number, because the mean of its divisors is an integer number (9926406588).

Almost surely, 2^64434568895 is an apocalyptic number.

64434568895 is a deficient number, since it is larger than the sum of its proper divisors (14976683809).

64434568895 is a wasteful number, since it uses less digits than its factorization.

64434568895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348295009.

The product of its digits is 99532800, while the sum is 62.

The spelling of 64434568895 in words is "sixty-four billion, four hundred thirty-four million, five hundred sixty-eight thousand, eight hundred ninety-five".