11998928413 has 4 divisors (see below), whose sum is σ = 12001520700. Its totient is φ = 11996336128.

The previous prime is 11998928407. The next prime is 11998928419. The reversal of 11998928413 is 31482989911.

11998928413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (11998928407) and next prime (11998928419).

It can be written as a sum of positive squares in 2 ways, for example, as 4827887289 + 7171041124 = 69483^2 + 84682^2 .

It is a cyclic number.

It is not a de Polignac number, because 11998928413 - 2¹³ = 11998920221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11998928419) 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 3 ways as a sum of consecutive naturals, for example, 1289188 + ... + 1298461.

It is an arithmetic number, because the mean of its divisors is an integer number (3000380175).

Almost surely, 2^11998928413 is an apocalyptic number.

It is an amenable number.

11998928413 is a deficient number, since it is larger than the sum of its proper divisors (2592287).

11998928413 is an equidigital number, since it uses as much as digits as its factorization.

11998928413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592286.

The product of its digits is 1119744, while the sum is 55.

The spelling of 11998928413 in words is "eleven billion, nine hundred ninety-eight million, nine hundred twenty-eight thousand, four hundred thirteen".