6255786991 has 8 divisors (see below), whose sum is σ = 6290064000. Its totient is φ = 6221569368.

The previous prime is 6255786967. The next prime is 6255787009. The reversal of 6255786991 is 1996875526.

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 6255786991 - 2⁹ = 6255786479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6255286991) 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, 205260 + ... + 233758.

It is an arithmetic number, because the mean of its divisors is an integer number (786258000).

Almost surely, 2^6255786991 is an apocalyptic number.

6255786991 is a deficient number, since it is larger than the sum of its proper divisors (34277009).

6255786991 is a wasteful number, since it uses less digits than its factorization.

6255786991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29693.

The product of its digits is 8164800, while the sum is 58.

The square root of 6255786991 is about 79093.5331806590. The cubic root of 6255786991 is about 1842.5840927997.

The spelling of 6255786991 in words is "six billion, two hundred fifty-five million, seven hundred eighty-six thousand, nine hundred ninety-one".