64463614176 has 144 divisors (see below), whose sum is σ = 184032169776. Its totient is φ = 19748671488.

The previous prime is 64463614129. The next prime is 64463614177. The reversal of 64463614176 is 67141636446.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64463614177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3771666 + ... + 3788718.

It is an arithmetic number, because the mean of its divisors is an integer number (1278001179).

Almost surely, 2^64463614176 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 64463614176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92016084888).

64463614176 is an abundant number, since it is smaller than the sum of its proper divisors (119568555600).

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

64463614176 is a wasteful number, since it uses less digits than its factorization.

64463614176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325 (or 17304 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The spelling of 64463614176 in words is "sixty-four billion, four hundred sixty-three million, six hundred fourteen thousand, one hundred seventy-six".