85688055623 has 2 divisors, whose sum is σ = 85688055624. Its totient is φ = 85688055622.

The previous prime is 85688055611. The next prime is 85688055641. The reversal of 85688055623 is 32655088658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85688055623 - 2⁸ = 85688055367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85688055923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42844027811 + 42844027812.

It is an arithmetic number, because the mean of its divisors is an integer number (42844027812).

Almost surely, 2^85688055623 is an apocalyptic number.

85688055623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85688055623 is an equidigital number, since it uses as much as digits as its factorization.

85688055623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 85688055623 in words is "eighty-five billion, six hundred eighty-eight million, fifty-five thousand, six hundred twenty-three".