64464783860 has 48 divisors (see below), whose sum is σ = 138619869696. Its totient is φ = 25168870272.

The previous prime is 64464783839. The next prime is 64464783899. The reversal of 64464783860 is 6838746446.

It is a junction number, because it is equal to n+sod(n) for n = 64464783796 and 64464783805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258877 + ... + 1309083.

It is an arithmetic number, because the mean of its divisors is an integer number (2887913952).

Almost surely, 2^64464783860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64464783860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69309934848).

64464783860 is an abundant number, since it is smaller than the sum of its proper divisors (74155085836).

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

64464783860 is a wasteful number, since it uses less digits than its factorization.

64464783860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51752 (or 51750 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 56.

The spelling of 64464783860 in words is "sixty-four billion, four hundred sixty-four million, seven hundred eighty-three thousand, eight hundred sixty".