3811728128423 has 8 divisors (see below), whose sum is σ = 4029133459200. Its totient is φ = 3596001603768.

The previous prime is 3811728128399. The next prime is 3811728128431. The reversal of 3811728128423 is 3248218271183.

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

It is a cyclic number.

It is not a de Polignac number, because 3811728128423 - 2²⁴ = 3811711351207 is a prime.

It is a super-2 number, since 2×3811728128423² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3811728128443) 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, 419696861 + ... + 419705942.

It is an arithmetic number, because the mean of its divisors is an integer number (503641682400).

Almost surely, 2^{3811728128423} is an apocalyptic number.

3811728128423 is a deficient number, since it is larger than the sum of its proper divisors (217405330777).

3811728128423 is a wasteful number, since it uses less digits than its factorization.

3811728128423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839403061.

The product of its digits is 1032192, while the sum is 50.

The spelling of 3811728128423 in words is "three trillion, eight hundred eleven billion, seven hundred twenty-eight million, one hundred twenty-eight thousand, four hundred twenty-three".