53638911360 has 384 divisors, whose sum is σ = 197042751360. Its totient is φ = 13398835200.

The previous prime is 53638911329. The next prime is 53638911373. The reversal of 53638911360 is 6311983635.

53638911360 is a `hidden beast` number, since 5 + 3 + 638 + 9 + 1 + 1 + 3 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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 47 ways as a sum of consecutive naturals, for example, 22814185 + ... + 22816535.

It is an arithmetic number, because the mean of its divisors is an integer number (513132165).

Almost surely, 2^53638911360 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 53638911360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98521375680).

53638911360 is an abundant number, since it is smaller than the sum of its proper divisors (143403840000).

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

53638911360 is a wasteful number, since it uses less digits than its factorization.

53638911360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 53638911360 in words is "fifty-three billion, six hundred thirty-eight million, nine hundred eleven thousand, three hundred sixty".