64011284544 has 224 divisors, whose sum is σ = 186467374080. Its totient is φ = 19289622528.

The previous prime is 64011284539. The next prime is 64011284549. The reversal of 64011284544 is 44548211046.

64011284544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64011284539) and next prime (64011284549).

It is not an unprimeable number, because it can be changed into a prime (64011284549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57305874 + ... + 57306990.

Almost surely, 2^64011284544 is an apocalyptic number.

64011284544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64011284544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93233687040).

64011284544 is an abundant number, since it is smaller than the sum of its proper divisors (122456089536).

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

64011284544 is a wasteful number, since it uses less digits than its factorization.

64011284544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 64011284544 in words is "sixty-four billion, eleven million, two hundred eighty-four thousand, five hundred forty-four".