52702604640 has 720 divisors, whose sum is σ = 222309731952. Its totient is φ = 11715508224.

The previous prime is 52702604627. The next prime is 52702604659. The reversal of 52702604640 is 4640620725.

52702604640 is a `hidden beast` number, since 5 + 2 + 7 + 0 + 2 + 6 + 0 + 4 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52702604595 and 52702604604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 23495359 + ... + 23497601.

Almost surely, 2^52702604640 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 52702604640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111154865976).

52702604640 is an abundant number, since it is smaller than the sum of its proper divisors (169607127312).

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

52702604640 is a wasteful number, since it uses less digits than its factorization.

52702604640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321 (or 2297 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 52702604640 in words is "fifty-two billion, seven hundred two million, six hundred four thousand, six hundred forty".