500779678848 has 128 divisors (see below), whose sum is σ = 1359638784000. Its totient is φ = 163237757952.

The previous prime is 500779678843. The next prime is 500779678957. The reversal of 500779678848 is 848876977005.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (500779678843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22711413 + ... + 22733451.

It is an arithmetic number, because the mean of its divisors is an integer number (10622178000).

Almost surely, 2^500779678848 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 500779678848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679819392000).

500779678848 is an abundant number, since it is smaller than the sum of its proper divisors (858859105152).

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

500779678848 is a wasteful number, since it uses less digits than its factorization.

500779678848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23362 (or 23350 counting only the distinct ones).

The product of its (nonzero) digits is 189665280, while the sum is 69.

The spelling of 500779678848 in words is "five hundred billion, seven hundred seventy-nine million, six hundred seventy-eight thousand, eight hundred forty-eight".