53441648640 has 336 divisors, whose sum is σ = 192281871600. Its totient is φ = 14249115648.

The previous prime is 53441648633. The next prime is 53441648651. The reversal of 53441648640 is 4684614435.

53441648640 is a `hidden beast` number, since 534 + 4 + 16 + 48 + 64 + 0 = 666.

It is a super-2 number, since 2×53441648640² (a number of 22 digits) contains 22 as substring.

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 27 ways as a sum of consecutive naturals, for example, 7461381 + ... + 7468539.

It is an arithmetic number, because the mean of its divisors is an integer number (572267475).

Almost surely, 2^53441648640 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 53441648640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96140935800).

53441648640 is an abundant number, since it is smaller than the sum of its proper divisors (138840222960).

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

53441648640 is an frugal number, since it uses more digits than its factorization.

53441648640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204 (or 7169 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 53441648640 in words is "fifty-three billion, four hundred forty-one million, six hundred forty-eight thousand, six hundred forty".