53771621904000 has 5120 divisors, whose sum is σ = 270799988659200. Its totient is φ = 10212065280000.

The previous prime is 53771621903939. The next prime is 53771621904037. The reversal of 53771621904000 is 40912617735.

53771621904000 is a `hidden beast` number, since 5 + 3 + 77 + 162 + 19 + 0 + 400 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 234810575886 + ... + 234810576114.

It is an arithmetic number, because the mean of its divisors is an integer number (52890622785).

Almost surely, 2^{53771621904000} is an apocalyptic number.

53771621904000 is a gapful number since it is divisible by the number (50) 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 53771621904000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135399994329600).

53771621904000 is an abundant number, since it is smaller than the sum of its proper divisors (217028366755200).

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

53771621904000 is a wasteful number, since it uses less digits than its factorization.

53771621904000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 53771621904000 in words is "fifty-three trillion, seven hundred seventy-one billion, six hundred twenty-one million, nine hundred four thousand".