51755715486 has 24 divisors (see below), whose sum is σ = 112405030920. Its totient is φ = 17210728656.

The previous prime is 51755715409. The next prime is 51755715491. The reversal of 51755715486 is 68451755715.

51755715486 is a `hidden beast` number, since 5 + 1 + 7 + 557 + 1 + 5 + 4 + 86 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3423625 + ... + 3438708.

It is an arithmetic number, because the mean of its divisors is an integer number (4683542955).

Almost surely, 2^51755715486 is an apocalyptic number.

51755715486 is an abundant number, since it is smaller than the sum of its proper divisors (60649315434).

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

51755715486 is a wasteful number, since it uses less digits than its factorization.

51755715486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862760 (or 6862757 counting only the distinct ones).

The product of its digits is 5880000, while the sum is 54.

The spelling of 51755715486 in words is "fifty-one billion, seven hundred fifty-five million, seven hundred fifteen thousand, four hundred eighty-six".