16327767438 has 24 divisors (see below), whose sum is σ = 35388908568. Its totient is φ = 5440730832.

The previous prime is 16327767437. The next prime is 16327767451. The reversal of 16327767438 is 83476772361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16327767437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100156 + ... + 206607.

It is an arithmetic number, because the mean of its divisors is an integer number (1474537857).

Almost surely, 2^16327767438 is an apocalyptic number.

16327767438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16327767438 is an abundant number, since it is smaller than the sum of its proper divisors (19061141130).

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

16327767438 is a wasteful number, since it uses less digits than its factorization.

16327767438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309728 (or 309725 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 16327767438 in words is "sixteen billion, three hundred twenty-seven million, seven hundred sixty-seven thousand, four hundred thirty-eight".