51063673878 has 48 divisors (see below), whose sum is σ = 129860783520. Its totient is φ = 14195305728.

The previous prime is 51063673849. The next prime is 51063673919. The reversal of 51063673878 is 87837636015.

51063673878 is a `hidden beast` number, since 510 + 63 + 67 + 3 + 8 + 7 + 8 = 666.

51063673878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5471923 + ... + 5481246.

It is an arithmetic number, because the mean of its divisors is an integer number (2705432990).

Almost surely, 2^51063673878 is an apocalyptic number.

51063673878 is an abundant number, since it is smaller than the sum of its proper divisors (78797109642).

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

51063673878 is a wasteful number, since it uses less digits than its factorization.

51063673878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10953221 (or 10953218 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 51063673878 in words is "fifty-one billion, sixty-three million, six hundred seventy-three thousand, eight hundred seventy-eight".