51984709364 has 36 divisors (see below), whose sum is σ = 105840846720. Its totient is φ = 22276038960.

The previous prime is 51984709363. The next prime is 51984709373. The reversal of 51984709364 is 46390748915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51984709363) 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 11 ways as a sum of consecutive naturals, for example, 1873907 + ... + 1901445.

It is an arithmetic number, because the mean of its divisors is an integer number (2940023520).

Almost surely, 2^51984709364 is an apocalyptic number.

It is an amenable number.

51984709364 is an abundant number, since it is smaller than the sum of its proper divisors (53856137356).

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

51984709364 is a wasteful number, since it uses less digits than its factorization.

51984709364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37188 (or 37179 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 51984709364 in words is "fifty-one billion, nine hundred eighty-four million, seven hundred nine thousand, three hundred sixty-four".