5236678656 has 252 divisors, whose sum is σ = 16655809716. Its totient is φ = 1584168960.

The previous prime is 5236678639. The next prime is 5236678693. The reversal of 5236678656 is 6568766325.

It is a happy number.

5236678656 is a `hidden beast` number, since 523 + 6 + 67 + 8 + 6 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8920795 + ... + 8921381.

It is an arithmetic number, because the mean of its divisors is an integer number (66094483).

Almost surely, 2^5236678656 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 5236678656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8327904858).

5236678656 is an abundant number, since it is smaller than the sum of its proper divisors (11419131060).

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

5236678656 is a wasteful number, since it uses less digits than its factorization.

5236678656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 603 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The square root of 5236678656 is about 72364.8993366259. The cubic root of 5236678656 is about 1736.5420663468.

The spelling of 5236678656 in words is "five billion, two hundred thirty-six million, six hundred seventy-eight thousand, six hundred fifty-six".