85539356723 has 2 divisors, whose sum is σ = 85539356724. Its totient is φ = 85539356722.

The previous prime is 85539356689. The next prime is 85539356729. The reversal of 85539356723 is 32765393558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85539356723 is a prime.

It is not a weakly prime, because it can be changed into another prime (85539356729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42769678361 + 42769678362.

It is an arithmetic number, because the mean of its divisors is an integer number (42769678362).

Almost surely, 2^85539356723 is an apocalyptic number.

85539356723 is a deficient number, since it is larger than the sum of its proper divisors (1).

85539356723 is an equidigital number, since it uses as much as digits as its factorization.

85539356723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412000, while the sum is 56.

It can be divided in two parts, 8553935 and 6723, that added together give a palindrome (8560658).

The spelling of 85539356723 in words is "eighty-five billion, five hundred thirty-nine million, three hundred fifty-six thousand, seven hundred twenty-three".