51334311952 has 120 divisors (see below), whose sum is σ = 129251102400. Its totient is φ = 19310565120.

The previous prime is 51334311947. The next prime is 51334311979. The reversal of 51334311952 is 25911343315.

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 23 ways as a sum of consecutive naturals, for example, 327699 + ... + 458317.

It is an arithmetic number, because the mean of its divisors is an integer number (1077092520).

Almost surely, 2^51334311952 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 51334311952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64625551200).

51334311952 is an abundant number, since it is smaller than the sum of its proper divisors (77916790448).

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

51334311952 is a wasteful number, since it uses less digits than its factorization.

51334311952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130685 (or 130668 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The spelling of 51334311952 in words is "fifty-one billion, three hundred thirty-four million, three hundred eleven thousand, nine hundred fifty-two".