1199385479268 has 36 divisors (see below), whose sum is σ = 3113719963900. Its totient is φ = 388989884736.

The previous prime is 1199385479267. The next prime is 1199385479269. The reversal of 1199385479268 is 8629745839911.

1199385479268 is a `hidden beast` number, since 1 + 1 + 9 + 93 + 8 + 5 + 479 + 2 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (1199385479267) and next prime (1199385479269).

It can be written as a sum of positive squares in 2 ways, for example, as 1051297507584 + 148087971684 = 1025328^2 + 384822^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1199385479196 and 1199385479205.

It is not an unprimeable number, because it can be changed into a prime (1199385479261) 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, 450218443 + ... + 450221106.

Almost surely, 2^{1199385479268} is an apocalyptic number.

1199385479268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1199385479268 is an abundant number, since it is smaller than the sum of its proper divisors (1914334484632).

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

1199385479268 is a wasteful number, since it uses less digits than its factorization.

1199385479268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900439596 (or 900439591 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 72.

The spelling of 1199385479268 in words is "one trillion, one hundred ninety-nine billion, three hundred eighty-five million, four hundred seventy-nine thousand, two hundred sixty-eight".