51863444682 has 32 divisors (see below), whose sum is σ = 118557153792. Its totient is φ = 14816609904.

The previous prime is 51863444669. The next prime is 51863444687. The reversal of 51863444682 is 28644436815.

It is a super-2 number, since 2×51863444682² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51863444687) 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 15 ways as a sum of consecutive naturals, for example, 390133 + ... + 505895.

It is an arithmetic number, because the mean of its divisors is an integer number (3704911056).

Almost surely, 2^51863444682 is an apocalyptic number.

51863444682 is an abundant number, since it is smaller than the sum of its proper divisors (66693709110).

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

51863444682 is a wasteful number, since it uses less digits than its factorization.

51863444682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126442.

The product of its digits is 4423680, while the sum is 51.

The spelling of 51863444682 in words is "fifty-one billion, eight hundred sixty-three million, four hundred forty-four thousand, six hundred eighty-two".