64327905369 has 48 divisors (see below), whose sum is σ = 117451606272. Its totient is φ = 33014127744.

The previous prime is 64327905353. The next prime is 64327905407. The reversal of 64327905369 is 96350972346.

64327905369 is a `hidden beast` number, since 6 + 4 + 3 + 279 + 0 + 5 + 369 = 666.

It is not a de Polignac number, because 64327905369 - 2⁴ = 64327905353 is a prime.

It is a super-2 number, since 2×64327905369² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64327905269) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1031109 + ... + 1091714.

It is an arithmetic number, because the mean of its divisors is an integer number (2446908464).

Almost surely, 2^64327905369 is an apocalyptic number.

It is an amenable number.

64327905369 is a deficient number, since it is larger than the sum of its proper divisors (53123700903).

64327905369 is a wasteful number, since it uses less digits than its factorization.

64327905369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122886 (or 2122883 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 64327905369 in words is "sixty-four billion, three hundred twenty-seven million, nine hundred five thousand, three hundred sixty-nine".