51378474134175 has 48 divisors (see below), whose sum is σ = 87050616856320. Its totient is φ = 26730803024640.

The previous prime is 51378474134167. The next prime is 51378474134209. The reversal of 51378474134175 is 57143147487315.

It is not a de Polignac number, because 51378474134175 - 2³ = 51378474134167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49116270 + ... + 50151419.

It is an arithmetic number, because the mean of its divisors is an integer number (1813554517840).

Almost surely, 2^{51378474134175} is an apocalyptic number.

51378474134175 is a deficient number, since it is larger than the sum of its proper divisors (35672142722145).

51378474134175 is a wasteful number, since it uses less digits than its factorization.

51378474134175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99267872 (or 99267867 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 60.

The spelling of 51378474134175 in words is "fifty-one trillion, three hundred seventy-eight billion, four hundred seventy-four million, one hundred thirty-four thousand, one hundred seventy-five".