64839656448 has 132 divisors (see below), whose sum is σ = 213969471040. Its totient is φ = 18525597696.

The previous prime is 64839656447. The next prime is 64839656449. The reversal of 64839656448 is 84465693846.

64839656448 is a `hidden beast` number, since 6 + 483 + 96 + 5 + 64 + 4 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (64839656447) and next prime (64839656449).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (64839656447) 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, 438028 + ... + 567051.

Almost surely, 2^64839656448 is an apocalyptic number.

It is an amenable number.

64839656448 is an abundant number, since it is smaller than the sum of its proper divisors (149129814592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64839656448 is a wasteful number, since it uses less digits than its factorization.

64839656448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005112 (or 1005091 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 64839656448 in words is "sixty-four billion, eight hundred thirty-nine million, six hundred fifty-six thousand, four hundred forty-eight".