64245762784 has 288 divisors, whose sum is σ = 160172964000. Its totient is φ = 25206128640.

The previous prime is 64245762773. The next prime is 64245762809. The reversal of 64245762784 is 48726754246.

64245762784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181999152 + ... + 181999504.

It is an arithmetic number, because the mean of its divisors is an integer number (556156125).

Almost surely, 2^64245762784 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 64245762784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80086482000).

64245762784 is an abundant number, since it is smaller than the sum of its proper divisors (95927201216).

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

64245762784 is a wasteful number, since it uses less digits than its factorization.

64245762784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 571 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 55.

The spelling of 64245762784 in words is "sixty-four billion, two hundred forty-five million, seven hundred sixty-two thousand, seven hundred eighty-four".