51125386506186 has 16 divisors (see below), whose sum is σ = 102902051823264. Its totient is φ = 16933249033584.

The previous prime is 51125386506169. The next prime is 51125386506193. The reversal of 51125386506186 is 68160568352115.

It is a super-2 number, since 2×51125386506186² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27136616100 + ... + 27136617983.

It is an arithmetic number, because the mean of its divisors is an integer number (6431378238954).

Almost surely, 2^{51125386506186} is an apocalyptic number.

51125386506186 is an abundant number, since it is smaller than the sum of its proper divisors (51776665317078).

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

51125386506186 is a wasteful number, since it uses less digits than its factorization.

51125386506186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54273234245.

The product of its (nonzero) digits is 10368000, while the sum is 57.

The spelling of 51125386506186 in words is "fifty-one trillion, one hundred twenty-five billion, three hundred eighty-six million, five hundred six thousand, one hundred eighty-six".