51144131140 has 24 divisors (see below), whose sum is σ = 107745828120. Its totient is φ = 20392290048.

The previous prime is 51144131107. The next prime is 51144131167. The reversal of 51144131140 is 4113144115.

It can be written as a sum of positive squares in 4 ways, for example, as 3249684036 + 47894447104 = 57006^2 + 218848^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4078735 + ... + 4091254.

It is an arithmetic number, because the mean of its divisors is an integer number (4489409505).

Almost surely, 2^51144131140 is an apocalyptic number.

It is an amenable number.

51144131140 is an abundant number, since it is smaller than the sum of its proper divisors (56601696980).

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

51144131140 is a wasteful number, since it uses less digits than its factorization.

51144131140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170311 (or 8170309 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 51144131140 its reverse (4113144115), we get a palindrome (55257275255).

The spelling of 51144131140 in words is "fifty-one billion, one hundred forty-four million, one hundred thirty-one thousand, one hundred forty".