4168728890 has 8 divisors (see below), whose sum is σ = 7503712020. Its totient is φ = 1667491552.

The previous prime is 4168728847. The next prime is 4168728919. The reversal of 4168728890 is 988278614.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4092288841 + 76440049 = 63971^2 + 8743^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208436435 + ... + 208436454.

Almost surely, 2^4168728890 is an apocalyptic number.

4168728890 is a deficient number, since it is larger than the sum of its proper divisors (3334983130).

4168728890 is a wasteful number, since it uses less digits than its factorization.

4168728890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416872896.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The square root of 4168728890 is about 64565.6943740250. The cubic root of 4168728890 is about 1609.4144045224.

The spelling of 4168728890 in words is "four billion, one hundred sixty-eight million, seven hundred twenty-eight thousand, eight hundred ninety".