6405488449 has 8 divisors (see below), whose sum is σ = 6760999040. Its totient is φ = 6051815856.

The previous prime is 6405488423. The next prime is 6405488461. The reversal of 6405488449 is 9448845046.

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

It is not a de Polignac number, because 6405488449 - 2⁵ = 6405488417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6405488396 and 6405488405.

It is not an unprimeable number, because it can be changed into a prime (6405483449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452334 + ... + 466279.

It is an arithmetic number, because the mean of its divisors is an integer number (845124880).

Almost surely, 2^6405488449 is an apocalyptic number.

It is an amenable number.

6405488449 is a deficient number, since it is larger than the sum of its proper divisors (355510591).

6405488449 is a wasteful number, since it uses less digits than its factorization.

6405488449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918999.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The square root of 6405488449 is about 80034.2954551360. The cubic root of 6405488449 is about 1857.1661135456.

The spelling of 6405488449 in words is "six billion, four hundred five million, four hundred eighty-eight thousand, four hundred forty-nine".