51436562572477 has 2 divisors, whose sum is σ = 51436562572478. Its totient is φ = 51436562572476.

The previous prime is 51436562572397. The next prime is 51436562572537. The reversal of 51436562572477 is 77427526563415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31138419992761 + 20298142579716 = 5580181^2 + 4505346^2 .

It is a cyclic number.

It is not a de Polignac number, because 51436562572477 - 2⁷ = 51436562572349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51436562512477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718281286238 + 25718281286239.

It is an arithmetic number, because the mean of its divisors is an integer number (25718281286239).

Almost surely, 2^{51436562572477} is an apocalyptic number.

It is an amenable number.

51436562572477 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436562572477 is an equidigital number, since it uses as much as digits as its factorization.

51436562572477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352000, while the sum is 64.

The spelling of 51436562572477 in words is "fifty-one trillion, four hundred thirty-six billion, five hundred sixty-two million, five hundred seventy-two thousand, four hundred seventy-seven".