64265428385 has 16 divisors (see below), whose sum is σ = 80500677120. Its totient is φ = 49194837120.

The previous prime is 64265428361. The next prime is 64265428387. The reversal of 64265428385 is 58382456246.

It is not a de Polignac number, because 64265428385 - 2³⁴ = 47085559201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64265428387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2315507 + ... + 2343096.

It is an arithmetic number, because the mean of its divisors is an integer number (5031292320).

Almost surely, 2^64265428385 is an apocalyptic number.

It is an amenable number.

64265428385 is a deficient number, since it is larger than the sum of its proper divisors (16235248735).

64265428385 is a wasteful number, since it uses less digits than its factorization.

64265428385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658728.

The product of its digits is 11059200, while the sum is 53.

The spelling of 64265428385 in words is "sixty-four billion, two hundred sixty-five million, four hundred twenty-eight thousand, three hundred eighty-five".