8636813485 has 16 divisors (see below), whose sum is σ = 10599963264. Its totient is φ = 6753253312.

The previous prime is 8636813473. The next prime is 8636813491. The reversal of 8636813485 is 5843186368.

It is a cyclic number.

It is not a de Polignac number, because 8636813485 - 2⁷ = 8636813357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7734 + ... + 131656.

It is an arithmetic number, because the mean of its divisors is an integer number (662497704).

Almost surely, 2^8636813485 is an apocalyptic number.

It is an amenable number.

8636813485 is a deficient number, since it is larger than the sum of its proper divisors (1963149779).

8636813485 is a wasteful number, since it uses less digits than its factorization.

8636813485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124244.

The product of its digits is 3317760, while the sum is 52.

The square root of 8636813485 is about 92934.4580067049. The cubic root of 8636813485 is about 2051.7188427710.

The spelling of 8636813485 in words is "eight billion, six hundred thirty-six million, eight hundred thirteen thousand, four hundred eighty-five".