3661128393 has 8 divisors (see below), whose sum is σ = 5257004928. Its totient is φ = 2253002064.

The previous prime is 3661128389. The next prime is 3661128397. The reversal of 3661128393 is 3938211663.

It is an interprime number because it is at equal distance from previous prime (3661128389) and next prime (3661128397).

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

It is not a de Polignac number, because 3661128393 - 2² = 3661128389 is a prime.

It is a super-2 number, since 2×3661128393² = 26807722220061524898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3661128397) 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, 46937505 + ... + 46937582.

It is an arithmetic number, because the mean of its divisors is an integer number (657125616).

Almost surely, 2^3661128393 is an apocalyptic number.

It is an amenable number.

3661128393 is a deficient number, since it is larger than the sum of its proper divisors (1595876535).

3661128393 is a wasteful number, since it uses less digits than its factorization.

3661128393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93875103.

The product of its digits is 139968, while the sum is 42.

The square root of 3661128393 is about 60507.2590107997. The cubic root of 3661128393 is about 1541.2449023274.

The spelling of 3661128393 in words is "three billion, six hundred sixty-one million, one hundred twenty-eight thousand, three hundred ninety-three".