800086436573 has 4 divisors (see below), whose sum is σ = 800148122748. Its totient is φ = 800024750400.

The previous prime is 800086436549. The next prime is 800086436581. The reversal of 800086436573 is 375634680008.

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 89172709924 + 710913726649 = 298618^2 + 843157^2 .

It is a cyclic number.

It is not a de Polignac number, because 800086436573 - 2⁶ = 800086436509 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 (800086436173) 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, 30823628 + ... + 30849573.

It is an arithmetic number, because the mean of its divisors is an integer number (200037030687).

Almost surely, 2^800086436573 is an apocalyptic number.

It is an amenable number.

800086436573 is a deficient number, since it is larger than the sum of its proper divisors (61686175).

800086436573 is a wasteful number, since it uses less digits than its factorization.

800086436573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61686174.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 800086436573 in words is "eight hundred billion, eighty-six million, four hundred thirty-six thousand, five hundred seventy-three".