51166780934 has 16 divisors (see below), whose sum is σ = 79134580800. Its totient is φ = 24797671080.

The previous prime is 51166780913. The next prime is 51166780943. The reversal of 51166780934 is 43908766115.

It is a super-2 number, since 2×51166780934² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2259584 + ... + 2282115.

It is an arithmetic number, because the mean of its divisors is an integer number (4945911300).

Almost surely, 2^51166780934 is an apocalyptic number.

51166780934 is a deficient number, since it is larger than the sum of its proper divisors (27967799866).

51166780934 is a wasteful number, since it uses less digits than its factorization.

51166780934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541875.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 51166780934 in words is "fifty-one billion, one hundred sixty-six million, seven hundred eighty thousand, nine hundred thirty-four".