52911778240 has 112 divisors (see below), whose sum is σ = 128035495008. Its totient is φ = 20823588864.

The previous prime is 52911778133. The next prime is 52911778243. The reversal of 52911778240 is 4287711925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52911778243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10345924 + ... + 10351036.

Almost surely, 2^52911778240 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 52911778240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64017747504).

52911778240 is an abundant number, since it is smaller than the sum of its proper divisors (75123716768).

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

52911778240 is a wasteful number, since it uses less digits than its factorization.

52911778240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646 (or 5636 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 52911778240 in words is "fifty-two billion, nine hundred eleven million, seven hundred seventy-eight thousand, two hundred forty".