51112309654080 has 672 divisors, whose sum is σ = 193919107898880. Its totient is φ = 12303152578560.

The previous prime is 51112309654073. The next prime is 51112309654103. The reversal of 51112309654080 is 8045690321115.

It is a happy number.

51112309654080 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 23 + 0 + 9 + 6 + 540 + 80 = 666.

It is a super-2 number, since 2×51112309654080² (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 118218457 + ... + 118650023.

It is an arithmetic number, because the mean of its divisors is an integer number (288570101040).

Almost surely, 2^{51112309654080} 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 51112309654080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96959553949440).

51112309654080 is an abundant number, since it is smaller than the sum of its proper divisors (142806798244800).

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

51112309654080 is a wasteful number, since it uses less digits than its factorization.

51112309654080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431707 (or 431694 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

Adding to 51112309654080 its reverse (8045690321115), we get a palindrome (59157999975195).

The spelling of 51112309654080 in words is "fifty-one trillion, one hundred twelve billion, three hundred nine million, six hundred fifty-four thousand, eighty".