18087669696 has 112 divisors (see below), whose sum is σ = 49468308480. Its totient is φ = 5826754560.

The previous prime is 18087669689. The next prime is 18087669697. The reversal of 18087669696 is 69696678081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18087669697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5634940 + ... + 5638148.

Almost surely, 2^18087669696 is an apocalyptic number.

18087669696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18087669696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24734154240).

18087669696 is an abundant number, since it is smaller than the sum of its proper divisors (31380638784).

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

18087669696 is a wasteful number, since it uses less digits than its factorization.

18087669696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4192 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 18087669696 in words is "eighteen billion, eighty-seven million, six hundred sixty-nine thousand, six hundred ninety-six".