51347171352 has 64 divisors (see below), whose sum is σ = 131491071360. Its totient is φ = 16700140800.

The previous prime is 51347171341. The next prime is 51347171389. The reversal of 51347171352 is 25317174315.

It is a self number, because there is not a number n which added to its sum of digits gives 51347171352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976452 + ... + 1027692.

It is an arithmetic number, because the mean of its divisors is an integer number (2054547990).

Almost surely, 2^51347171352 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 51347171352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65745535680).

51347171352 is an abundant number, since it is smaller than the sum of its proper divisors (80143900008).

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

51347171352 is a wasteful number, since it uses less digits than its factorization.

51347171352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52264 (or 52260 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The spelling of 51347171352 in words is "fifty-one billion, three hundred forty-seven million, one hundred seventy-one thousand, three hundred fifty-two".