85669632563 has 2 divisors, whose sum is σ = 85669632564. Its totient is φ = 85669632562.

The previous prime is 85669632557. The next prime is 85669632661. The reversal of 85669632563 is 36523696658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85669632563 - 2¹⁸ = 85669370419 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (85669632263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42834816281 + 42834816282.

It is an arithmetic number, because the mean of its divisors is an integer number (42834816282).

Almost surely, 2^85669632563 is an apocalyptic number.

85669632563 is a deficient number, since it is larger than the sum of its proper divisors (1).

85669632563 is an equidigital number, since it uses as much as digits as its factorization.

85669632563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41990400, while the sum is 59.

The spelling of 85669632563 in words is "eighty-five billion, six hundred sixty-nine million, six hundred thirty-two thousand, five hundred sixty-three".