51348972336 has 40 divisors (see below), whose sum is σ = 133939403520. Its totient is φ = 16950144576.

The previous prime is 51348972307. The next prime is 51348972347. The reversal of 51348972336 is 63327984315.

It is a super-3 number, since 3×51348972336³ (a number of 33 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 5188116 + ... + 5198003.

It is an arithmetic number, because the mean of its divisors is an integer number (3348485088).

Almost surely, 2^51348972336 is an apocalyptic number.

It is an amenable number.

51348972336 is an abundant number, since it is smaller than the sum of its proper divisors (82590431184).

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

51348972336 is a wasteful number, since it uses less digits than its factorization.

51348972336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10386233 (or 10386227 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The spelling of 51348972336 in words is "fifty-one billion, three hundred forty-eight million, nine hundred seventy-two thousand, three hundred thirty-six".