51734681328 has 160 divisors (see below), whose sum is σ = 151590297600. Its totient is φ = 15061651200.

The previous prime is 51734681311. The next prime is 51734681371. The reversal of 51734681328 is 82318643715.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2263783 + ... + 2286521.

It is an arithmetic number, because the mean of its divisors is an integer number (947439360).

Almost surely, 2^51734681328 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 51734681328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75795148800).

51734681328 is an abundant number, since it is smaller than the sum of its proper divisors (99855616272).

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

51734681328 is a wasteful number, since it uses less digits than its factorization.

51734681328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22931 (or 22925 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 51734681328 in words is "fifty-one billion, seven hundred thirty-four million, six hundred eighty-one thousand, three hundred twenty-eight".