85029836723 has 4 divisors (see below), whose sum is σ = 91570593408. Its totient is φ = 78489080040.

The previous prime is 85029836719. The next prime is 85029836741. The reversal of 85029836723 is 32763892058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85029836723 - 2² = 85029836719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85029836783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3270378323 + ... + 3270378348.

It is an arithmetic number, because the mean of its divisors is an integer number (22892648352).

Almost surely, 2^85029836723 is an apocalyptic number.

85029836723 is a deficient number, since it is larger than the sum of its proper divisors (6540756685).

85029836723 is a wasteful number, since it uses less digits than its factorization.

85029836723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540756684.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 85029836723 in words is "eighty-five billion, twenty-nine million, eight hundred thirty-six thousand, seven hundred twenty-three".