11928427399 has 8 divisors (see below), whose sum is σ = 13672943648. Its totient is φ = 10194024960.

The previous prime is 11928427397. The next prime is 11928427439. The reversal of 11928427399 is 99372482911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11928427399 - 2¹ = 11928427397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11928427393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2525922 + ... + 2530639.

It is an arithmetic number, because the mean of its divisors is an integer number (1709117956).

Almost surely, 2^11928427399 is an apocalyptic number.

11928427399 is a deficient number, since it is larger than the sum of its proper divisors (1744516249).

11928427399 is an equidigital number, since it uses as much as digits as its factorization.

11928427399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056905.

The product of its digits is 1959552, while the sum is 55.

The spelling of 11928427399 in words is "eleven billion, nine hundred twenty-eight million, four hundred twenty-seven thousand, three hundred ninety-nine".