18134533836 has 36 divisors (see below), whose sum is σ = 46190007864. Its totient is φ = 5998699200.

The previous prime is 18134533789. The next prime is 18134533843. The reversal of 18134533836 is 63833543181.

18134533836 is a `hidden beast` number, since 1 + 8 + 1 + 34 + 533 + 83 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18134533836² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18134533791 and 18134533800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1917945 + ... + 1927376.

It is an arithmetic number, because the mean of its divisors is an integer number (1283055774).

Almost surely, 2^18134533836 is an apocalyptic number.

It is an amenable number.

18134533836 is an abundant number, since it is smaller than the sum of its proper divisors (28055474028).

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

18134533836 is a wasteful number, since it uses less digits than its factorization.

18134533836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845462 (or 3845457 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 18134533836 in words is "eighteen billion, one hundred thirty-four million, five hundred thirty-three thousand, eight hundred thirty-six".