16378423450 has 12 divisors (see below), whose sum is σ = 30463867710. Its totient is φ = 6551369360.

The previous prime is 16378423403. The next prime is 16378423459. The reversal of 16378423450 is 5432487361.

16378423450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 13299394329 + 3079029121 = 115323^2 + 55489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16378423397 and 16378423406.

It is not an unprimeable number, because it can be changed into a prime (16378423459) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 163784185 + ... + 163784284.

Almost surely, 2^16378423450 is an apocalyptic number.

16378423450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16378423450 is a deficient number, since it is larger than the sum of its proper divisors (14085444260).

16378423450 is a wasteful number, since it uses less digits than its factorization.

16378423450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327568481 (or 327568476 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 16378423450 in words is "sixteen billion, three hundred seventy-eight million, four hundred twenty-three thousand, four hundred fifty".