6415486749 has 48 divisors (see below), whose sum is σ = 11179584000. Its totient is φ = 3539529504.

The previous prime is 6415486739. The next prime is 6415486751. The reversal of 6415486749 is 9476845146.

It is not a de Polignac number, because 6415486749 - 2⁴ = 6415486733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6415486695 and 6415486704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6415486739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53692 + ... + 125354.

It is an arithmetic number, because the mean of its divisors is an integer number (232908000).

Almost surely, 2^6415486749 is an apocalyptic number.

It is an amenable number.

6415486749 is a deficient number, since it is larger than the sum of its proper divisors (4764097251).

6415486749 is a wasteful number, since it uses less digits than its factorization.

6415486749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71719 (or 71702 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 6415486749 is about 80096.7336974486. The cubic root of 6415486749 is about 1858.1318921537.

The spelling of 6415486749 in words is "six billion, four hundred fifteen million, four hundred eighty-six thousand, seven hundred forty-nine".