43277063561551 has 2 divisors, whose sum is σ = 43277063561552. Its totient is φ = 43277063561550.

The previous prime is 43277063561513. The next prime is 43277063561581. The reversal of 43277063561551 is 15516536077234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43277063561551 - 2⁴¹ = 41078040305999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43277063561492 and 43277063561501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43277063561581) 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, 21638531780775 + 21638531780776.

It is an arithmetic number, because the mean of its divisors is an integer number (21638531780776).

Almost surely, 2^{43277063561551} is an apocalyptic number.

43277063561551 is a deficient number, since it is larger than the sum of its proper divisors (1).

43277063561551 is an equidigital number, since it uses as much as digits as its factorization.

43277063561551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 43277063561551 in words is "forty-three trillion, two hundred seventy-seven billion, sixty-three million, five hundred sixty-one thousand, five hundred fifty-one".