4128645746 has 8 divisors (see below), whose sum is σ = 6200626140. Its totient is φ = 2061770368.

The previous prime is 4128645733. The next prime is 4128645767. The reversal of 4128645746 is 6475468214.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4123052521 + 5593225 = 64211^2 + 2365^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4128645746.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274231 + ... + 1277466.

Almost surely, 2^4128645746 is an apocalyptic number.

4128645746 is a deficient number, since it is larger than the sum of its proper divisors (2071980394).

4128645746 is a wasteful number, since it uses less digits than its factorization.

4128645746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552508.

The product of its digits is 1290240, while the sum is 47.

The square root of 4128645746 is about 64254.5387190664. The cubic root of 4128645746 is about 1604.2395048794.

The spelling of 4128645746 in words is "four billion, one hundred twenty-eight million, six hundred forty-five thousand, seven hundred forty-six".