6491480403 has 4 divisors (see below), whose sum is σ = 8655307208. Its totient is φ = 4327653600.

The previous prime is 6491480393. The next prime is 6491480407. The reversal of 6491480403 is 3040841946.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6491480403 - 2¹² = 6491476307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6491480407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081913398 + ... + 1081913403.

It is an arithmetic number, because the mean of its divisors is an integer number (2163826802).

Almost surely, 2^6491480403 is an apocalyptic number.

6491480403 is a deficient number, since it is larger than the sum of its proper divisors (2163826805).

6491480403 is a wasteful number, since it uses less digits than its factorization.

6491480403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163826804.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 6491480403 is about 80569.7238607655. The cubic root of 6491480403 is about 1865.4398503508.

The spelling of 6491480403 in words is "six billion, four hundred ninety-one million, four hundred eighty thousand, four hundred three".