51343135000 has 80 divisors (see below), whose sum is σ = 120645756000. Its totient is φ = 20477712000.

The previous prime is 51343134961. The next prime is 51343135001. The reversal of 51343135000 is 53134315.

It is a super-2 number, since 2×51343135000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51343135001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1730289 + ... + 1759711.

It is an arithmetic number, because the mean of its divisors is an integer number (1508071950).

Almost surely, 2^51343135000 is an apocalyptic number.

51343135000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51343135000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60322878000).

51343135000 is an abundant number, since it is smaller than the sum of its proper divisors (69302621000).

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

51343135000 is a wasteful number, since it uses less digits than its factorization.

51343135000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29798 (or 29779 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 51343135000 its reverse (53134315), we get a palindrome (51396269315).

The spelling of 51343135000 in words is "fifty-one billion, three hundred forty-three million, one hundred thirty-five thousand".