6246405985 has 8 divisors (see below), whose sum is σ = 7655170176. Its totient is φ = 4890802800.

The previous prime is 6246405943. The next prime is 6246406003. The reversal of 6246405985 is 5895046426.

6246405985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-6246405985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13289991 + ... + 13290460.

It is an arithmetic number, because the mean of its divisors is an integer number (956896272).

Almost surely, 2^6246405985 is an apocalyptic number.

It is an amenable number.

6246405985 is a deficient number, since it is larger than the sum of its proper divisors (1408764191).

6246405985 is a wasteful number, since it uses less digits than its factorization.

6246405985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26580503.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The square root of 6246405985 is about 79034.2076888229. The cubic root of 6246405985 is about 1841.6626025676.

The spelling of 6246405985 in words is "six billion, two hundred forty-six million, four hundred five thousand, nine hundred eighty-five".