8463605551 has 2 divisors, whose sum is σ = 8463605552. Its totient is φ = 8463605550.

The previous prime is 8463605509. The next prime is 8463605569. The reversal of 8463605551 is 1555063648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8463605551 - 2²¹ = 8461508399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8463605498 and 8463605507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8463605581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4231802775 + 4231802776.

It is an arithmetic number, because the mean of its divisors is an integer number (4231802776).

Almost surely, 2^8463605551 is an apocalyptic number.

8463605551 is a deficient number, since it is larger than the sum of its proper divisors (1).

8463605551 is an equidigital number, since it uses as much as digits as its factorization.

8463605551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 8463605551 is about 91997.8562304579. The cubic root of 8463605551 is about 2037.9106468581.

The spelling of 8463605551 in words is "eight billion, four hundred sixty-three million, six hundred five thousand, five hundred fifty-one".