51144372580 has 192 divisors, whose sum is σ = 130348818432. Its totient is φ = 16490580480.

The previous prime is 51144372541. The next prime is 51144372583. The reversal of 51144372580 is 8527344115.

It is not an unprimeable number, because it can be changed into a prime (51144372583) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 20205915 + ... + 20208445.

It is an arithmetic number, because the mean of its divisors is an integer number (678900096).

Almost surely, 2^51144372580 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 51144372580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65174409216).

51144372580 is an abundant number, since it is smaller than the sum of its proper divisors (79204445852).

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

51144372580 is a wasteful number, since it uses less digits than its factorization.

51144372580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714 (or 2712 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 51144372580 in words is "fifty-one billion, one hundred forty-four million, three hundred seventy-two thousand, five hundred eighty".