51034335320 has 64 divisors (see below), whose sum is σ = 118859719680. Its totient is φ = 19705545216.

The previous prime is 51034335307. The next prime is 51034335323. The reversal of 51034335320 is 2353343015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51034335323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52202 + ... + 323718.

It is an arithmetic number, because the mean of its divisors is an integer number (1857183120).

Almost surely, 2^51034335320 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 51034335320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59429859840).

51034335320 is an abundant number, since it is smaller than the sum of its proper divisors (67825384360).

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

51034335320 is a wasteful number, since it uses less digits than its factorization.

51034335320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271692 (or 271688 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 51034335320 its reverse (2353343015), we get a palindrome (53387678335).

The spelling of 51034335320 in words is "fifty-one billion, thirty-four million, three hundred thirty-five thousand, three hundred twenty".