52137720448 has 64 divisors (see below), whose sum is σ = 113417871840. Its totient is φ = 23676544000.

The previous prime is 52137720433. The next prime is 52137720457. The reversal of 52137720448 is 84402773125.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519158 + ... + 1553098.

Almost surely, 2^52137720448 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 52137720448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56708935920).

52137720448 is an abundant number, since it is smaller than the sum of its proper divisors (61280151392).

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

52137720448 is a wasteful number, since it uses less digits than its factorization.

52137720448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35057 (or 35045 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 52137720448 in words is "fifty-two billion, one hundred thirty-seven million, seven hundred twenty thousand, four hundred forty-eight".