51344627808 has 288 divisors, whose sum is σ = 151695331200. Its totient is φ = 15160836096.

The previous prime is 51344627797. The next prime is 51344627809. The reversal of 51344627808 is 80872644315.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51344627809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135473763 + ... + 135474141.

It is an arithmetic number, because the mean of its divisors is an integer number (526719900).

Almost surely, 2^51344627808 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 51344627808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75847665600).

51344627808 is an abundant number, since it is smaller than the sum of its proper divisors (100350703392).

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

51344627808 is a wasteful number, since it uses less digits than its factorization.

51344627808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 51344627808 in words is "fifty-one billion, three hundred forty-four million, six hundred twenty-seven thousand, eight hundred eight".