51371271584 has 24 divisors (see below), whose sum is σ = 106460202240. Its totient is φ = 24333759936.

The previous prime is 51371271571. The next prime is 51371271607. The reversal of 51371271584 is 48517217315.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42245504 + ... + 42246719.

It is an arithmetic number, because the mean of its divisors is an integer number (4435841760).

Almost surely, 2^51371271584 is an apocalyptic number.

It is an amenable number.

51371271584 is an abundant number, since it is smaller than the sum of its proper divisors (55088930656).

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

51371271584 is a wasteful number, since it uses less digits than its factorization.

51371271584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84492252 (or 84492244 counting only the distinct ones).

The product of its digits is 235200, while the sum is 44.

Adding to 51371271584 its reverse (48517217315), we get a palindrome (99888488899).

It can be divided in two parts, 5137 and 1271584, that added together give a palindrome (1276721).

The spelling of 51371271584 in words is "fifty-one billion, three hundred seventy-one million, two hundred seventy-one thousand, five hundred eighty-four".