51486182404 has 6 divisors (see below), whose sum is σ = 90100819214. Its totient is φ = 25743091200.

The previous prime is 51486182401. The next prime is 51486182411. The reversal of 51486182404 is 40428168415.

It can be written as a sum of positive squares in only one way, i.e., 51097698304 + 388484100 = 226048^2 + 19710^2 .

It is not an unprimeable number, because it can be changed into a prime (51486182401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435772797 + ... + 6435772804.

Almost surely, 2^51486182404 is an apocalyptic number.

It is an amenable number.

51486182404 is a deficient number, since it is larger than the sum of its proper divisors (38614636810).

51486182404 is a wasteful number, since it uses less digits than its factorization.

51486182404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12871545605 (or 12871545603 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The spelling of 51486182404 in words is "fifty-one billion, four hundred eighty-six million, one hundred eighty-two thousand, four hundred four".