51208030186 has 16 divisors (see below), whose sum is σ = 79859928960. Its totient is φ = 24606695520.

The previous prime is 51208030183. The next prime is 51208030193. The reversal of 51208030186 is 68103080215.

It is not an unprimeable number, because it can be changed into a prime (51208030183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4654866 + ... + 4665853.

It is an arithmetic number, because the mean of its divisors is an integer number (4991245560).

Almost surely, 2^51208030186 is an apocalyptic number.

51208030186 is a deficient number, since it is larger than the sum of its proper divisors (28651898774).

51208030186 is a wasteful number, since it uses less digits than its factorization.

51208030186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320829.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 51208030186 in words is "fifty-one billion, two hundred eight million, thirty thousand, one hundred eighty-six".