51384963952 has 40 divisors (see below), whose sum is σ = 113791824000. Its totient is φ = 22020030912.

The previous prime is 51384963871. The next prime is 51384963989. The reversal of 51384963952 is 25936948315.

It is a junction number, because it is equal to n+sod(n) for n = 51384963893 and 51384963902.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1955799 + ... + 1981897.

It is an arithmetic number, because the mean of its divisors is an integer number (2844795600).

Almost surely, 2^51384963952 is an apocalyptic number.

It is an amenable number.

51384963952 is an abundant number, since it is smaller than the sum of its proper divisors (62406860048).

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

51384963952 is a wasteful number, since it uses less digits than its factorization.

51384963952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43693 (or 43687 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The spelling of 51384963952 in words is "fifty-one billion, three hundred eighty-four million, nine hundred sixty-three thousand, nine hundred fifty-two".