85342723687723 has 2 divisors, whose sum is σ = 85342723687724. Its totient is φ = 85342723687722.

The previous prime is 85342723687633. The next prime is 85342723687733. The reversal of 85342723687723 is 32778632724358.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85342723687723 is a prime.

It is not a weakly prime, because it can be changed into another prime (85342723687733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42671361843861 + 42671361843862.

It is an arithmetic number, because the mean of its divisors is an integer number (42671361843862).

Almost surely, 2^{85342723687723} is an apocalyptic number.

85342723687723 is a deficient number, since it is larger than the sum of its proper divisors (1).

85342723687723 is an equidigital number, since it uses as much as digits as its factorization.

85342723687723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 568995840, while the sum is 67.

The spelling of 85342723687723 in words is "eighty-five trillion, three hundred forty-two billion, seven hundred twenty-three million, six hundred eighty-seven thousand, seven hundred twenty-three".