8535820499 has 4 divisors (see below), whose sum is σ = 8549096136. Its totient is φ = 8522544864.

The previous prime is 8535820477. The next prime is 8535820507. The reversal of 8535820499 is 9940285358.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8535820499 is a prime.

It is a super-2 number, since 2×8535820499² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8535820499.

It is not an unprimeable number, because it can be changed into a prime (8535820409) 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, 6636854 + ... + 6638139.

It is an arithmetic number, because the mean of its divisors is an integer number (2137274034).

Almost surely, 2^8535820499 is an apocalyptic number.

8535820499 is a deficient number, since it is larger than the sum of its proper divisors (13275637).

8535820499 is a wasteful number, since it uses less digits than its factorization.

8535820499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13275636.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The square root of 8535820499 is about 92389.5042686127. The cubic root of 8535820499 is about 2043.6903356921.

The spelling of 8535820499 in words is "eight billion, five hundred thirty-five million, eight hundred twenty thousand, four hundred ninety-nine".