4128623647 has 8 divisors (see below), whose sum is σ = 4146308672. Its totient is φ = 4110976800.

The previous prime is 4128623633. The next prime is 4128623693. The reversal of 4128623647 is 7463268214.

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 4128623647 - 2¹¹ = 4128621599 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 (4128629647) 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, 218698 + ... + 236824.

It is an arithmetic number, because the mean of its divisors is an integer number (518288584).

Almost surely, 2^4128623647 is an apocalyptic number.

4128623647 is a deficient number, since it is larger than the sum of its proper divisors (17685025).

4128623647 is a wasteful number, since it uses less digits than its factorization.

4128623647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19089.

The product of its digits is 387072, while the sum is 43.

The square root of 4128623647 is about 64254.3667543304. The cubic root of 4128623647 is about 1604.2366425888.

The spelling of 4128623647 in words is "four billion, one hundred twenty-eight million, six hundred twenty-three thousand, six hundred forty-seven".