51414213278654 has 16 divisors (see below), whose sum is σ = 78528116044800. Its totient is φ = 25239281876184.

The previous prime is 51414213278651. The next prime is 51414213278741. The reversal of 51414213278654 is 45687231241415.

It is a junction number, because it is equal to n+sod(n) for n = 51414213278596 and 51414213278605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51414213278651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276726494 + ... + 276912225.

It is an arithmetic number, because the mean of its divisors is an integer number (4908007252800).

Almost surely, 2^{51414213278654} is an apocalyptic number.

51414213278654 is a deficient number, since it is larger than the sum of its proper divisors (27113902766146).

51414213278654 is a wasteful number, since it uses less digits than its factorization.

51414213278654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553639567.

The product of its digits is 6451200, while the sum is 53.

The spelling of 51414213278654 in words is "fifty-one trillion, four hundred fourteen billion, two hundred thirteen million, two hundred seventy-eight thousand, six hundred fifty-four".