11899328797843 has 4 divisors (see below), whose sum is σ = 11922168201048. Its totient is φ = 11876489394640.

The previous prime is 11899328797831. The next prime is 11899328797859. The reversal of 11899328797843 is 34879782399811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11899328797843 is a prime.

It is a super-2 number, since 2×11899328797843² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11899328497843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11419700821 + ... + 11419701862.

It is an arithmetic number, because the mean of its divisors is an integer number (2980542050262).

Almost surely, 2^{11899328797843} is an apocalyptic number.

11899328797843 is a deficient number, since it is larger than the sum of its proper divisors (22839403205).

11899328797843 is an equidigital number, since it uses as much as digits as its factorization.

11899328797843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22839403204.

The product of its digits is 1316818944, while the sum is 79.

The spelling of 11899328797843 in words is "eleven trillion, eight hundred ninety-nine billion, three hundred twenty-eight million, seven hundred ninety-seven thousand, eight hundred forty-three".