85206973423 has 12 divisors (see below), whose sum is σ = 100861657624. Its totient is φ = 71502354000.

The previous prime is 85206973421. The next prime is 85206973427. The reversal of 85206973423 is 32437960258.

It is not a de Polignac number, because 85206973423 - 2¹ = 85206973421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85206973421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27082653 + ... + 27085798.

Almost surely, 2^85206973423 is an apocalyptic number.

85206973423 is a deficient number, since it is larger than the sum of its proper divisors (15654684201).

85206973423 is a wasteful number, since it uses less digits than its factorization.

85206973423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54168486 (or 54168475 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 85206973423 in words is "eighty-five billion, two hundred six million, nine hundred seventy-three thousand, four hundred twenty-three".