51432044472877 has 2 divisors, whose sum is σ = 51432044472878. Its totient is φ = 51432044472876.

The previous prime is 51432044472871. The next prime is 51432044472889. The reversal of 51432044472877 is 77827444023415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48966811621641 + 2465232851236 = 6997629^2 + 1570106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51432044472877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51432044472871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25716022236438 + 25716022236439.

It is an arithmetic number, because the mean of its divisors is an integer number (25716022236439).

Almost surely, 2^{51432044472877} is an apocalyptic number.

It is an amenable number.

51432044472877 is a deficient number, since it is larger than the sum of its proper divisors (1).

51432044472877 is an equidigital number, since it uses as much as digits as its factorization.

51432044472877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42147840, while the sum is 58.

The spelling of 51432044472877 in words is "fifty-one trillion, four hundred thirty-two billion, forty-four million, four hundred seventy-two thousand, eight hundred seventy-seven".