18896047744 has 64 divisors (see below), whose sum is σ = 43296600960. Its totient is φ = 8046664704.

The previous prime is 18896047711. The next prime is 18896047769. The reversal of 18896047744 is 44774069881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 73509 + ... + 207835.

It is an arithmetic number, because the mean of its divisors is an integer number (676509390).

Almost surely, 2^18896047744 is an apocalyptic number.

18896047744 is a gapful number since it is divisible by the number (14) 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 18896047744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21648300480).

18896047744 is an abundant number, since it is smaller than the sum of its proper divisors (24400553216).

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

18896047744 is a wasteful number, since it uses less digits than its factorization.

18896047744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134505 (or 134493 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 18896047744 in words is "eighteen billion, eight hundred ninety-six million, forty-seven thousand, seven hundred forty-four".