51201770118 has 16 divisors (see below), whose sum is σ = 102653920560. Its totient is φ = 17025526656.

The previous prime is 51201770089. The next prime is 51201770129. The reversal of 51201770118 is 81107710215.

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, 10429855 + ... + 10434762.

It is an arithmetic number, because the mean of its divisors is an integer number (6415870035).

Almost surely, 2^51201770118 is an apocalyptic number.

51201770118 is an abundant number, since it is smaller than the sum of its proper divisors (51452150442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51201770118 is a wasteful number, since it uses less digits than its factorization.

51201770118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20865031.

The product of its (nonzero) digits is 3920, while the sum is 33.

The spelling of 51201770118 in words is "fifty-one billion, two hundred one million, seven hundred seventy thousand, one hundred eighteen".