85663423727 has 32 divisors (see below), whose sum is σ = 102438950400. Its totient is φ = 70085167488.

The previous prime is 85663423723. The next prime is 85663423763. The reversal of 85663423727 is 72732436658.

It is a happy number.

It is not a de Polignac number, because 85663423727 - 2² = 85663423723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85663423723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6279488 + ... + 6293114.

It is an arithmetic number, because the mean of its divisors is an integer number (3201217200).

Almost surely, 2^85663423727 is an apocalyptic number.

85663423727 is a deficient number, since it is larger than the sum of its proper divisors (16775526673).

85663423727 is a wasteful number, since it uses less digits than its factorization.

85663423727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14015.

The product of its digits is 10160640, while the sum is 53.

The spelling of 85663423727 in words is "eighty-five billion, six hundred sixty-three million, four hundred twenty-three thousand, seven hundred twenty-seven".