51777409124 has 48 divisors (see below), whose sum is σ = 112521400320. Its totient is φ = 20344258080.

The previous prime is 51777409087. The next prime is 51777409147. The reversal of 51777409124 is 42190477715.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553282 + ... + 1586265.

It is an arithmetic number, because the mean of its divisors is an integer number (2344195840).

Almost surely, 2^51777409124 is an apocalyptic number.

It is an amenable number.

51777409124 is an abundant number, since it is smaller than the sum of its proper divisors (60743991196).

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

51777409124 is a wasteful number, since it uses less digits than its factorization.

51777409124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139608 (or 3139606 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The spelling of 51777409124 in words is "fifty-one billion, seven hundred seventy-seven million, four hundred nine thousand, one hundred twenty-four".