18702868448 has 48 divisors (see below), whose sum is σ = 40318190640. Its totient is φ = 8469657600.

The previous prime is 18702868417. The next prime is 18702868451. The reversal of 18702868448 is 84486820781.

It is a junction number, because it is equal to n+sod(n) for n = 18702868393 and 18702868402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4073 + ... + 193448.

It is an arithmetic number, because the mean of its divisors is an integer number (839962305).

Almost surely, 2^18702868448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18702868448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20159095320).

18702868448 is an abundant number, since it is smaller than the sum of its proper divisors (21615322192).

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

18702868448 is a wasteful number, since it uses less digits than its factorization.

18702868448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197811 (or 197803 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 56.

The spelling of 18702868448 in words is "eighteen billion, seven hundred two million, eight hundred sixty-eight thousand, four hundred forty-eight".