51678881133 has 16 divisors (see below), whose sum is σ = 75340531200. Its totient is φ = 31249180080.

The previous prime is 51678881123. The next prime is 51678881231. The reversal of 51678881133 is 33118887615.

It is not a de Polignac number, because 51678881133 - 2¹³ = 51678872941 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51678881123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1769143 + ... + 1798116.

It is an arithmetic number, because the mean of its divisors is an integer number (4708783200).

Almost surely, 2^51678881133 is an apocalyptic number.

It is an amenable number.

51678881133 is a deficient number, since it is larger than the sum of its proper divisors (23661650067).

51678881133 is a wasteful number, since it uses less digits than its factorization.

51678881133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567712.

The product of its digits is 967680, while the sum is 51.

The spelling of 51678881133 in words is "fifty-one billion, six hundred seventy-eight million, eight hundred eighty-one thousand, one hundred thirty-three".