3128866761 has 8 divisors (see below), whose sum is σ = 4176582784. Its totient is φ = 2083530960.

The previous prime is 3128866747. The next prime is 3128866861. The reversal of 3128866761 is 1676688213.

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

It is not a de Polignac number, because 3128866761 - 2⁷ = 3128866633 is a prime.

It is a super-2 number, since 2×3128866761² = 19579614416181262242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3128866761.

It is not an unprimeable number, because it can be changed into a prime (3128866861) 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, 591985 + ... + 597246.

It is an arithmetic number, because the mean of its divisors is an integer number (522072848).

Almost surely, 2^3128866761 is an apocalyptic number.

It is an amenable number.

3128866761 is a deficient number, since it is larger than the sum of its proper divisors (1047716023).

3128866761 is a wasteful number, since it uses less digits than its factorization.

3128866761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190111.

The product of its digits is 580608, while the sum is 48.

The square root of 3128866761 is about 55936.2741072374. The cubic root of 3128866761 is about 1462.6116327090.

The spelling of 3128866761 in words is "three billion, one hundred twenty-eight million, eight hundred sixty-six thousand, seven hundred sixty-one".