51384495896 has 16 divisors (see below), whose sum is σ = 97506725400. Its totient is φ = 25382702464.

The previous prime is 51384495893. The next prime is 51384495941. The reversal of 51384495896 is 69859448315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51384495893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38692481 + ... + 38693808.

Almost surely, 2^51384495896 is an apocalyptic number.

It is an amenable number.

51384495896 is a deficient number, since it is larger than the sum of its proper divisors (46122229504).

51384495896 is a wasteful number, since it uses less digits than its factorization.

51384495896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77386378 (or 77386374 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 62.

The spelling of 51384495896 in words is "fifty-one billion, three hundred eighty-four million, four hundred ninety-five thousand, eight hundred ninety-six".