51167103688 has 8 divisors (see below), whose sum is σ = 95938319430. Its totient is φ = 25583551840.

The previous prime is 51167103671. The next prime is 51167103763. The reversal of 51167103688 is 88630176115.

It can be written as a sum of positive squares in only one way, i.e., 37487929924 + 13679173764 = 193618^2 + 116958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 3197943973 + ... + 3197943988.

Almost surely, 2^51167103688 is an apocalyptic number.

It is an amenable number.

51167103688 is a deficient number, since it is larger than the sum of its proper divisors (44771215742).

51167103688 is a wasteful number, since it uses less digits than its factorization.

51167103688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395887967 (or 6395887963 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 51167103688 in words is "fifty-one billion, one hundred sixty-seven million, one hundred three thousand, six hundred eighty-eight".