16391431748 has 12 divisors (see below), whose sum is σ = 28790856192. Its totient is φ = 8165472840.

The previous prime is 16391431747. The next prime is 16391431783. The reversal of 16391431748 is 84713419361.

It is not an unprimeable number, because it can be changed into a prime (16391431747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7559540 + ... + 7561707.

It is an arithmetic number, because the mean of its divisors is an integer number (2399238016).

Almost surely, 2^16391431748 is an apocalyptic number.

It is an amenable number.

16391431748 is a deficient number, since it is larger than the sum of its proper divisors (12399424444).

16391431748 is a wasteful number, since it uses less digits than its factorization.

16391431748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15121522 (or 15121520 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The spelling of 16391431748 in words is "sixteen billion, three hundred ninety-one million, four hundred thirty-one thousand, seven hundred forty-eight".