51770288448 has 42 divisors (see below), whose sum is σ = 148390186074. Its totient is φ = 17256762624.

The previous prime is 51770288441. The next prime is 51770288497. The reversal of 51770288448 is 84488207715.

51770288448 is a `hidden beast` number, since 5 + 177 + 0 + 28 + 8 + 448 = 666.

51770288448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51351185664 + 419102784 = 226608^2 + 20472^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51770288394 and 51770288403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51770288441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44938911 + ... + 44940062.

Almost surely, 2^51770288448 is an apocalyptic number.

It is an amenable number.

51770288448 is an abundant number, since it is smaller than the sum of its proper divisors (96619897626).

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

51770288448 is a wasteful number, since it uses less digits than its factorization.

51770288448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89878991 (or 89878978 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 54.

The spelling of 51770288448 in words is "fifty-one billion, seven hundred seventy million, two hundred eighty-eight thousand, four hundred forty-eight".