13535864808 has 32 divisors (see below), whose sum is σ = 34754249760. Its totient is φ = 4390009920.

The previous prime is 13535864807. The next prime is 13535864833. The reversal of 13535864808 is 80846853531.

It is a happy number.

It is a super-2 number, since 2×13535864808² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13535864801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7620658 + ... + 7622433.

It is an arithmetic number, because the mean of its divisors is an integer number (1086070305).

Almost surely, 2^13535864808 is an apocalyptic number.

It is an amenable number.

13535864808 is an abundant number, since it is smaller than the sum of its proper divisors (21218384952).

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

13535864808 is a wasteful number, since it uses less digits than its factorization.

13535864808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15243137 (or 15243133 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 13535864808 in words is "thirteen billion, five hundred thirty-five million, eight hundred sixty-four thousand, eight hundred eight".