85804005677 has 4 divisors (see below), whose sum is σ = 92404313820. Its totient is φ = 79203697536.

The previous prime is 85804005629. The next prime is 85804005691. The reversal of 85804005677 is 77650040858.

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 52813095721 + 32990909956 = 229811^2 + 181634^2 .

It is a cyclic number.

It is not a de Polignac number, because 85804005677 - 2¹⁰ = 85804004653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85804055677) 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, 3300154052 + ... + 3300154077.

It is an arithmetic number, because the mean of its divisors is an integer number (23101078455).

Almost surely, 2^85804005677 is an apocalyptic number.

It is an amenable number.

85804005677 is a deficient number, since it is larger than the sum of its proper divisors (6600308143).

85804005677 is a wasteful number, since it uses less digits than its factorization.

85804005677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600308142.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 85804005677 in words is "eighty-five billion, eight hundred four million, five thousand, six hundred seventy-seven".