51678463802 has 16 divisors (see below), whose sum is σ = 89659023552. Its totient is φ = 21881070240.

The previous prime is 51678463783. The next prime is 51678463807. The reversal of 51678463802 is 20836487615.

It is not an unprimeable number, because it can be changed into a prime (51678463807) 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, 22235699 + ... + 22238022.

It is an arithmetic number, because the mean of its divisors is an integer number (5603688972).

Almost surely, 2^51678463802 is an apocalyptic number.

51678463802 is a deficient number, since it is larger than the sum of its proper divisors (37980559750).

51678463802 is a wasteful number, since it uses less digits than its factorization.

51678463802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44473813.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 51678463802 in words is "fifty-one billion, six hundred seventy-eight million, four hundred sixty-three thousand, eight hundred two".