51111041184 has 288 divisors, whose sum is σ = 177388323840. Its totient is φ = 13644288000.

The previous prime is 51111041171. The next prime is 51111041207. The reversal of 51111041184 is 48114011115.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×51111041184² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1798284 + ... + 1826484.

It is an arithmetic number, because the mean of its divisors is an integer number (615931680).

Almost surely, 2^51111041184 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 51111041184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88694161920).

51111041184 is an abundant number, since it is smaller than the sum of its proper divisors (126277282656).

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

51111041184 is a wasteful number, since it uses less digits than its factorization.

51111041184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28284 (or 28273 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

Adding to 51111041184 its reverse (48114011115), we get a palindrome (99225052299).

The spelling of 51111041184 in words is "fifty-one billion, one hundred eleven million, forty-one thousand, one hundred eighty-four".