64885724904 has 256 divisors, whose sum is σ = 219198228480. Its totient is φ = 15457029120.

The previous prime is 64885724873. The next prime is 64885724909. The reversal of 64885724904 is 40942758846.

It is not an unprimeable number, because it can be changed into a prime (64885724909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3763167 + ... + 3780369.

It is an arithmetic number, because the mean of its divisors is an integer number (856243080).

Almost surely, 2^64885724904 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 64885724904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109599114240).

64885724904 is an abundant number, since it is smaller than the sum of its proper divisors (154312503576).

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

64885724904 is a wasteful number, since it uses less digits than its factorization.

64885724904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17400 (or 17396 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 64885724904 in words is "sixty-four billion, eight hundred eighty-five million, seven hundred twenty-four thousand, nine hundred four".