8085423120077 has 4 divisors (see below), whose sum is σ = 8237978273340. Its totient is φ = 7932867966816.

The previous prime is 8085423120011. The next prime is 8085423120091. The reversal of 8085423120077 is 7700213245808.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4154446756516 + 3930976363561 = 2038246^2 + 1982669^2 .

It is a cyclic number.

It is not a de Polignac number, because 8085423120077 - 2¹² = 8085423115981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8085423120277) 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, 76277576552 + ... + 76277576657.

It is an arithmetic number, because the mean of its divisors is an integer number (2059494568335).

Almost surely, 2^{8085423120077} is an apocalyptic number.

It is an amenable number.

8085423120077 is a deficient number, since it is larger than the sum of its proper divisors (152555153263).

8085423120077 is a wasteful number, since it uses less digits than its factorization.

8085423120077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152555153262.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 8085423120077 in words is "eight trillion, eighty-five billion, four hundred twenty-three million, one hundred twenty thousand, seventy-seven".