51880054618 has 16 divisors (see below), whose sum is σ = 89936533440. Its totient is φ = 21984484896.

The previous prime is 51880054613. The next prime is 51880054637. The reversal of 51880054618 is 81645008815.

It is not an unprimeable number, because it can be changed into a prime (51880054613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20817396 + ... + 20819887.

It is an arithmetic number, because the mean of its divisors is an integer number (5621033340).

Almost surely, 2^51880054618 is an apocalyptic number.

51880054618 is a deficient number, since it is larger than the sum of its proper divisors (38056478822).

51880054618 is a wasteful number, since it uses less digits than its factorization.

51880054618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41637381.

The product of its (nonzero) digits is 307200, while the sum is 46.

The spelling of 51880054618 in words is "fifty-one billion, eight hundred eighty million, fifty-four thousand, six hundred eighteen".