16478717844 has 48 divisors (see below), whose sum is σ = 38869923456. Its totient is φ = 5433254400.

The previous prime is 16478717813. The next prime is 16478717873. The reversal of 16478717844 is 44871787461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444129 + ... + 479799.

It is an arithmetic number, because the mean of its divisors is an integer number (809790072).

Almost surely, 2^16478717844 is an apocalyptic number.

It is an amenable number.

16478717844 is an abundant number, since it is smaller than the sum of its proper divisors (22391205612).

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

16478717844 is a wasteful number, since it uses less digits than its factorization.

16478717844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36096 (or 36094 counting only the distinct ones).

The product of its digits is 8429568, while the sum is 57.

The spelling of 16478717844 in words is "sixteen billion, four hundred seventy-eight million, seven hundred seventeen thousand, eight hundred forty-four".