51894182775 has 48 divisors (see below), whose sum is σ = 88797629088. Its totient is φ = 26723328000.

The previous prime is 51894182741. The next prime is 51894182827. The reversal of 51894182775 is 57728149815.

It is a happy number.

It is not a de Polignac number, because 51894182775 - 2¹¹ = 51894180727 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 (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211285 + ... + 385265.

It is an arithmetic number, because the mean of its divisors is an integer number (1849950606).

Almost surely, 2^51894182775 is an apocalyptic number.

51894182775 is a deficient number, since it is larger than the sum of its proper divisors (36903446313).

51894182775 is a wasteful number, since it uses less digits than its factorization.

51894182775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174132 (or 174127 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 57.

The spelling of 51894182775 in words is "fifty-one billion, eight hundred ninety-four million, one hundred eighty-two thousand, seven hundred seventy-five".