3128029961 has 8 divisors (see below), whose sum is σ = 3575322240. Its totient is φ = 2680845408.

The previous prime is 3128029951. The next prime is 3128029981. The reversal of 3128029961 is 1699208213.

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 3128029961 - 2⁶ = 3128029897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3128029901) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49925 + ... + 93533.

It is an arithmetic number, because the mean of its divisors is an integer number (446915280).

Almost surely, 2^3128029961 is an apocalyptic number.

It is an amenable number.

3128029961 is a deficient number, since it is larger than the sum of its proper divisors (447292279).

3128029961 is a wasteful number, since it uses less digits than its factorization.

3128029961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53863.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 3128029961 is about 55928.7936665900. The cubic root of 3128029961 is about 1462.4812316582.

The spelling of 3128029961 in words is "three billion, one hundred twenty-eight million, twenty-nine thousand, nine hundred sixty-one".