53239968912 has 240 divisors, whose sum is σ = 156387490560. Its totient is φ = 15507578880.

The previous prime is 53239968877. The next prime is 53239968917. The reversal of 53239968912 is 21986993235.

It is not an unprimeable number, because it can be changed into a prime (53239968917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28183264 + ... + 28185152.

It is an arithmetic number, because the mean of its divisors is an integer number (651614544).

Almost surely, 2^53239968912 is an apocalyptic number.

53239968912 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53239968912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78193745280).

53239968912 is an abundant number, since it is smaller than the sum of its proper divisors (103147521648).

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

53239968912 is a wasteful number, since it uses less digits than its factorization.

53239968912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 1985 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 57.

The spelling of 53239968912 in words is "fifty-three billion, two hundred thirty-nine million, nine hundred sixty-eight thousand, nine hundred twelve".