52764640236 has 144 divisors (see below), whose sum is σ = 166878636288. Its totient is φ = 13656470400.

The previous prime is 52764640219. The next prime is 52764640241. The reversal of 52764640236 is 63204646725.

52764640236 is a `hidden beast` number, since 527 + 64 + 6 + 40 + 23 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 52764640191 and 52764640200.

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, 750846 + ... + 818106.

Almost surely, 2^52764640236 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 52764640236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83439318144).

52764640236 is an abundant number, since it is smaller than the sum of its proper divisors (114113996052).

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

52764640236 is a wasteful number, since it uses less digits than its factorization.

52764640236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67572 (or 67567 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 52764640236 in words is "fifty-two billion, seven hundred sixty-four million, six hundred forty thousand, two hundred thirty-six".