51407268534766 has 32 divisors (see below), whose sum is σ = 78734172448512. Its totient is φ = 25167189748800.

The previous prime is 51407268534751. The next prime is 51407268534799. The reversal of 51407268534766 is 66743586270415.

It is a junction number, because it is equal to n+sod(n) for n = 51407268534698 and 51407268534707.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 642141441 + ... + 642221491.

It is an arithmetic number, because the mean of its divisors is an integer number (2460442889016).

Almost surely, 2^{51407268534766} is an apocalyptic number.

51407268534766 is a deficient number, since it is larger than the sum of its proper divisors (27326903913746).

51407268534766 is a wasteful number, since it uses less digits than its factorization.

51407268534766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108984.

The product of its (nonzero) digits is 203212800, while the sum is 64.

The spelling of 51407268534766 in words is "fifty-one trillion, four hundred seven billion, two hundred sixty-eight million, five hundred thirty-four thousand, seven hundred sixty-six".