51383541888 has 384 divisors, whose sum is σ = 182513088000. Its totient is φ = 14173415424.

The previous prime is 51383541887. The next prime is 51383541893. The reversal of 51383541888 is 88814538315.

51383541888 is a `hidden beast` number, since 5 + 13 + 8 + 3 + 541 + 8 + 88 = 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 (54).

It is not an unprimeable number, because it can be changed into a prime (51383541883) 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, 4905745 + ... + 4916207.

It is an arithmetic number, because the mean of its divisors is an integer number (475294500).

Almost surely, 2^51383541888 is an apocalyptic number.

51383541888 is a gapful number since it is divisible by the number (58) 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 51383541888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91256544000).

51383541888 is an abundant number, since it is smaller than the sum of its proper divisors (131129546112).

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

51383541888 is a wasteful number, since it uses less digits than its factorization.

51383541888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529 (or 10504 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The spelling of 51383541888 in words is "fifty-one billion, three hundred eighty-three million, five hundred forty-one thousand, eight hundred eighty-eight".