8536809492 has 18 divisors (see below), whose sum is σ = 21579157418. Its totient is φ = 2845603152.

The previous prime is 8536809473. The next prime is 8536809557. The reversal of 8536809492 is 2949086358.

It can be written as a sum of positive squares in only one way, i.e., 5332796676 + 3204012816 = 73026^2 + 56604^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118566763 + ... + 118566834.

Almost surely, 2^8536809492 is an apocalyptic number.

It is an amenable number.

8536809492 is an abundant number, since it is smaller than the sum of its proper divisors (13042347926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8536809492 is a wasteful number, since it uses less digits than its factorization.

8536809492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237133607 (or 237133602 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 8536809492 is about 92394.8564152789. The cubic root of 8536809492 is about 2043.7692625853.

The spelling of 8536809492 in words is "eight billion, five hundred thirty-six million, eight hundred nine thousand, four hundred ninety-two".