6484405145 has 8 divisors (see below), whose sum is σ = 7814683656. Its totient is φ = 5165259136.

The previous prime is 6484405127. The next prime is 6484405159. The reversal of 6484405145 is 5415044846.

It can be written as a sum of positive squares in 4 ways, for example, as 256512256 + 6227892889 = 16016^2 + 78917^2 .

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 6484405145 - 2⁸ = 6484404889 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, 2781842 + ... + 2784171.

It is an arithmetic number, because the mean of its divisors is an integer number (976835457).

Almost surely, 2^6484405145 is an apocalyptic number.

It is an amenable number.

6484405145 is a deficient number, since it is larger than the sum of its proper divisors (1330278511).

6484405145 is a wasteful number, since it uses less digits than its factorization.

6484405145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566251.

The product of its (nonzero) digits is 307200, while the sum is 41.

The square root of 6484405145 is about 80525.8042182753. The cubic root of 6484405145 is about 1864.7618711409.

The spelling of 6484405145 in words is "six billion, four hundred eighty-four million, four hundred five thousand, one hundred forty-five".