4128623672 has 32 divisors (see below), whose sum is σ = 8387161200. Its totient is φ = 1897695744.

The previous prime is 4128623633. The next prime is 4128623693. The reversal of 4128623672 is 2763268214.

4128623672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347147 + ... + 358842.

Almost surely, 2^4128623672 is an apocalyptic number.

It is an amenable number.

4128623672 is an abundant number, since it is smaller than the sum of its proper divisors (4258537528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4128623672 is a wasteful number, since it uses less digits than its factorization.

4128623672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706055 (or 706051 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 4128623672 is about 64254.3669488697. The cubic root of 4128623672 is about 1604.2366458268.

The spelling of 4128623672 in words is "four billion, one hundred twenty-eight million, six hundred twenty-three thousand, six hundred seventy-two".