64470385344 has 112 divisors (see below), whose sum is σ = 185747558400. Its totient is φ = 19656999936.

The previous prime is 64470385303. The next prime is 64470385379. The reversal of 64470385344 is 44358307446.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 64470385293 and 64470385302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198912 + ... + 410495.

Almost surely, 2^64470385344 is an apocalyptic number.

64470385344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64470385344 is an abundant number, since it is smaller than the sum of its proper divisors (121277173056).

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

64470385344 is a wasteful number, since it uses less digits than its factorization.

64470385344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609470 (or 609460 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 48.

The spelling of 64470385344 in words is "sixty-four billion, four hundred seventy million, three hundred eighty-five thousand, three hundred forty-four".