1199109355885 has 32 divisors (see below), whose sum is σ = 1659844961280. Its totient is φ = 814572764928.

The previous prime is 1199109355817. The next prime is 1199109355897. The reversal of 1199109355885 is 5885539019911.

It is a cyclic number.

It is not a de Polignac number, because 1199109355885 - 2³¹ = 1196961872237 is a prime.

It is a super-3 number, since 3×1199109355885³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27953964 + ... + 27996826.

It is an arithmetic number, because the mean of its divisors is an integer number (51870155040).

Almost surely, 2^{1199109355885} is an apocalyptic number.

It is an amenable number.

1199109355885 is a deficient number, since it is larger than the sum of its proper divisors (460735605395).

1199109355885 is a wasteful number, since it uses less digits than its factorization.

1199109355885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50317.

The product of its (nonzero) digits is 17496000, while the sum is 64.

The spelling of 1199109355885 in words is "one trillion, one hundred ninety-nine billion, one hundred nine million, three hundred fifty-five thousand, eight hundred eighty-five".