51473185108 has 12 divisors (see below), whose sum is σ = 90090154420. Its totient is φ = 25733140992.

The previous prime is 51473185103. The next prime is 51473185109. The reversal of 51473185108 is 80158137415.

It can be written as a sum of positive squares in 2 ways, for example, as 38260142404 + 13213042704 = 195602^2 + 114948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51473185103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829191 + ... + 889102.

Almost surely, 2^51473185108 is an apocalyptic number.

It is an amenable number.

51473185108 is a deficient number, since it is larger than the sum of its proper divisors (38616969312).

51473185108 is a wasteful number, since it uses less digits than its factorization.

51473185108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725786 (or 1725784 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 51473185108 in words is "fifty-one billion, four hundred seventy-three million, one hundred eighty-five thousand, one hundred eight".