51673609377 has 48 divisors (see below), whose sum is σ = 85171374288. Its totient is φ = 29906841600.

The previous prime is 51673609363. The next prime is 51673609457. The reversal of 51673609377 is 77390637615.

51673609377 is a `hidden beast` number, since 516 + 7 + 36 + 0 + 93 + 7 + 7 = 666.

51673609377 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 8 ways, for example, as 2193610896 + 49479998481 = 46836^2 + 222441^2 .

It is not a de Polignac number, because 51673609377 - 2¹⁰ = 51673608353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51673609357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2960877 + ... + 2978277.

It is an arithmetic number, because the mean of its divisors is an integer number (1774403631).

Almost surely, 2^51673609377 is an apocalyptic number.

It is an amenable number.

51673609377 is a deficient number, since it is larger than the sum of its proper divisors (33497764911).

51673609377 is a wasteful number, since it uses less digits than its factorization.

51673609377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930 (or 18927 counting only the distinct ones).

The product of its (nonzero) digits is 5000940, while the sum is 54.

The spelling of 51673609377 in words is "fifty-one billion, six hundred seventy-three million, six hundred nine thousand, three hundred seventy-seven".