6128672786 has 8 divisors (see below), whose sum is σ = 9193946124. Its totient is φ = 3064024080.

The previous prime is 6128672777. The next prime is 6128672791. The reversal of 6128672786 is 6872768216.

It can be written as a sum of positive squares in 2 ways, for example, as 4784350561 + 1344322225 = 69169^2 + 36665^2 .

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

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, 130805 + ... + 171368.

Almost surely, 2^6128672786 is an apocalyptic number.

6128672786 is a deficient number, since it is larger than the sum of its proper divisors (3065273338).

6128672786 is a wasteful number, since it uses less digits than its factorization.

6128672786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312316.

The product of its digits is 2709504, while the sum is 53.

The square root of 6128672786 is about 78285.8402650186. The cubic root of 6128672786 is about 1830.0184920544.

The spelling of 6128672786 in words is "six billion, one hundred twenty-eight million, six hundred seventy-two thousand, seven hundred eighty-six".