16397038784 has 28 divisors (see below), whose sum is σ = 37186142544. Its totient is φ = 7027302144.

The previous prime is 16397038727. The next prime is 16397038793. The reversal of 16397038784 is 48783079361.

16397038784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18299819 + ... + 18300714.

Almost surely, 2^16397038784 is an apocalyptic number.

16397038784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16397038784 is an abundant number, since it is smaller than the sum of its proper divisors (20789103760).

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

16397038784 is an equidigital number, since it uses as much as digits as its factorization.

16397038784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36600552 (or 36600542 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 16397038784 in words is "sixteen billion, three hundred ninety-seven million, thirty-eight thousand, seven hundred eighty-four".