52218639360 has 792 divisors, whose sum is σ = 201805050720. Its totient is φ = 12911394816.

The previous prime is 52218639353. The next prime is 52218639367. The reversal of 52218639360 is 6393681225.

52218639360 is a `hidden beast` number, since 5 + 2 + 2 + 1 + 8 + 639 + 3 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (52218639353) and next prime (52218639367).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52218639367) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1111034857 + ... + 1111034903.

Almost surely, 2^52218639360 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 52218639360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100902525360).

52218639360 is an abundant number, since it is smaller than the sum of its proper divisors (149586411360).

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

52218639360 is an equidigital number, since it uses as much as digits as its factorization.

52218639360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 76 counting only the distinct ones).

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

The spelling of 52218639360 in words is "fifty-two billion, two hundred eighteen million, six hundred thirty-nine thousand, three hundred sixty".