6126091921 has 8 divisors (see below), whose sum is σ = 6367377600. Its totient is φ = 5886809040.

The previous prime is 6126091919. The next prime is 6126091931. The reversal of 6126091921 is 1291906216.

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 6126091921 - 2¹ = 6126091919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6126091931) 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, 494461 + ... + 506698.

It is an arithmetic number, because the mean of its divisors is an integer number (795922200).

Almost surely, 2^6126091921 is an apocalyptic number.

It is an amenable number.

6126091921 is a deficient number, since it is larger than the sum of its proper divisors (241285679).

6126091921 is a wasteful number, since it uses less digits than its factorization.

6126091921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001399.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 6126091921 is about 78269.3549289887. The cubic root of 6126091921 is about 1829.7615743403.

It can be divided in two parts, 61260 and 91921, that added together give a triangular number (153181 = T₅₅₃).

The spelling of 6126091921 in words is "six billion, one hundred twenty-six million, ninety-one thousand, nine hundred twenty-one".