6409468491 has 8 divisors (see below), whose sum is σ = 8546734224. Its totient is φ = 4272590880.

The previous prime is 6409468487. The next prime is 6409468511. The reversal of 6409468491 is 1948649046.

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

It is not a de Polignac number, because 6409468491 - 2² = 6409468487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6409468391) 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, 56020 + ... + 126321.

It is an arithmetic number, because the mean of its divisors is an integer number (1068341778).

Almost surely, 2^6409468491 is an apocalyptic number.

6409468491 is a deficient number, since it is larger than the sum of its proper divisors (2137265733).

6409468491 is a wasteful number, since it uses less digits than its factorization.

6409468491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194061.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 6409468491 is about 80059.1561971521. The cubic root of 6409468491 is about 1857.5506831638.

The spelling of 6409468491 in words is "six billion, four hundred nine million, four hundred sixty-eight thousand, four hundred ninety-one".