4128223461428 has 96 divisors (see below), whose sum is σ = 8148900848256. Its totient is φ = 1828718496000.

The previous prime is 4128223461421. The next prime is 4128223461487. The reversal of 4128223461428 is 8241643228214.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128223461421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211944026 + ... + 211963502.

It is an arithmetic number, because the mean of its divisors is an integer number (84884383836).

Almost surely, 2^{4128223461428} is an apocalyptic number.

It is an amenable number.

4128223461428 is a deficient number, since it is larger than the sum of its proper divisors (4020677386828).

4128223461428 is a wasteful number, since it uses less digits than its factorization.

4128223461428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20526 (or 20502 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 47.

The spelling of 4128223461428 in words is "four trillion, one hundred twenty-eight billion, two hundred twenty-three million, four hundred sixty-one thousand, four hundred twenty-eight".