51678463853 has 8 divisors (see below), whose sum is σ = 52580806560. Its totient is φ = 50777002480.

The previous prime is 51678463847. The next prime is 51678463861. The reversal of 51678463853 is 35836487615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51678463853 - 2³⁰ = 50604722029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51678463883) 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, 101483 + ... + 337128.

It is an arithmetic number, because the mean of its divisors is an integer number (6572600820).

Almost surely, 2^51678463853 is an apocalyptic number.

It is an amenable number.

51678463853 is a deficient number, since it is larger than the sum of its proper divisors (902342707).

51678463853 is a wasteful number, since it uses less digits than its factorization.

51678463853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440667.

The product of its digits is 14515200, while the sum is 56.

The spelling of 51678463853 in words is "fifty-one billion, six hundred seventy-eight million, four hundred sixty-three thousand, eight hundred fifty-three".