52699026240 has 672 divisors, whose sum is σ = 230915992320. Its totient is φ = 10738925568.

The previous prime is 52699026239. The next prime is 52699026269. The reversal of 52699026240 is 4262099625.

52699026240 is a `hidden beast` number, since 5 + 269 + 90 + 262 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6507634 + ... + 6515726.

Almost surely, 2^52699026240 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 52699026240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115457996160).

52699026240 is an abundant number, since it is smaller than the sum of its proper divisors (178216966080).

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

52699026240 is a wasteful number, since it uses less digits than its factorization.

52699026240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159 (or 8146 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 52699026240 in words is "fifty-two billion, six hundred ninety-nine million, twenty-six thousand, two hundred forty".