18408036036 has 24 divisors (see below), whose sum is σ = 46256090944. Its totient is φ = 5664011040.

The previous prime is 18408036011. The next prime is 18408036037. The reversal of 18408036036 is 63063080481.

It is a Harshad number since it is a multiple of its sum of digits (39).

18408036036 is a modest number, since divided by 36036 gives 18408 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 18408035985 and 18408036003.

It is not an unprimeable number, because it can be changed into a prime (18408036037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58999960 + ... + 59000271.

Almost surely, 2^18408036036 is an apocalyptic number.

It is an amenable number.

18408036036 is an abundant number, since it is smaller than the sum of its proper divisors (27848054908).

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

18408036036 is a wasteful number, since it uses less digits than its factorization.

18408036036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118000251 (or 118000249 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

It can be divided in two parts, 184080 and 36036, that added together give a triangular number (220116 = T₆₆₃).

The spelling of 18408036036 in words is "eighteen billion, four hundred eight million, thirty-six thousand, thirty-six".