6411609745 has 8 divisors (see below), whose sum is σ = 7698470400. Its totient is φ = 5126262000.

The previous prime is 6411609731. The next prime is 6411609749. The reversal of 6411609745 is 5479061146.

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-6411609745 is a prime.

It is a super-2 number, since 2×6411609745² = 82217479044357930050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6411609749) 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, 368881 + ... + 385870.

It is an arithmetic number, because the mean of its divisors is an integer number (962308800).

Almost surely, 2^6411609745 is an apocalyptic number.

It is an amenable number.

6411609745 is a deficient number, since it is larger than the sum of its proper divisors (1286860655).

6411609745 is a wasteful number, since it uses less digits than its factorization.

6411609745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756455.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 6411609745 is about 80072.5280292811. The cubic root of 6411609745 is about 1857.7575149258.

The spelling of 6411609745 in words is "six billion, four hundred eleven million, six hundred nine thousand, seven hundred forty-five".