64459693485 has 80 divisors (see below), whose sum is σ = 126597556800. Its totient is φ = 31118549760.

The previous prime is 64459693483. The next prime is 64459693553. The reversal of 64459693485 is 58439695446.

64459693485 is a `hidden beast` number, since 6 + 4 + 4 + 596 + 9 + 34 + 8 + 5 = 666.

64459693485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64459693485 - 2¹ = 64459693483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64459693483) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1006966 + ... + 1069064.

It is an arithmetic number, because the mean of its divisors is an integer number (1582469460).

Almost surely, 2^64459693485 is an apocalyptic number.

It is an amenable number.

64459693485 is a deficient number, since it is larger than the sum of its proper divisors (62137863315).

64459693485 is a wasteful number, since it uses less digits than its factorization.

64459693485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62360 (or 62351 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 63.

The spelling of 64459693485 in words is "sixty-four billion, four hundred fifty-nine million, six hundred ninety-three thousand, four hundred eighty-five".