51774055760 has 80 divisors (see below), whose sum is σ = 138856934016. Its totient is φ = 17585186304.

The previous prime is 51774055759. The next prime is 51774055777. The reversal of 51774055760 is 6755047715.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 372107 + ... + 491946.

Almost surely, 2^51774055760 is an apocalyptic number.

It is an amenable number.

51774055760 is an abundant number, since it is smaller than the sum of its proper divisors (87082878256).

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

51774055760 is a wasteful number, since it uses less digits than its factorization.

51774055760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864180 (or 864174 counting only the distinct ones).

The product of its (nonzero) digits is 1029000, while the sum is 47.

The spelling of 51774055760 in words is "fifty-one billion, seven hundred seventy-four million, fifty-five thousand, seven hundred sixty".