1899393207328 has 12 divisors (see below), whose sum is σ = 3739430376990. Its totient is φ = 949696603648.

The previous prime is 1899393207311. The next prime is 1899393207329. The reversal of 1899393207328 is 8237023939981.

It can be written as a sum of positive squares in only one way, i.e., 1664234162704 + 235159044624 = 1290052^2 + 484932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1899393207328.

It is not an unprimeable number, because it can be changed into a prime (1899393207329) 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 as a sum of consecutive naturals, namely, 29678018833 + ... + 29678018896.

Almost surely, 2^{1899393207328} is an apocalyptic number.

It is an amenable number.

1899393207328 is a deficient number, since it is larger than the sum of its proper divisors (1840037169662).

1899393207328 is an equidigital number, since it uses as much as digits as its factorization.

1899393207328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59356037739 (or 59356037731 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 1899393207328 in words is "one trillion, eight hundred ninety-nine billion, three hundred ninety-three million, two hundred seven thousand, three hundred twenty-eight".