6475421507 has 4 divisors (see below), whose sum is σ = 6477535896. Its totient is φ = 6473307120.

The previous prime is 6475421497. The next prime is 6475421539. The reversal of 6475421507 is 7051245746.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6475421507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6475421807) 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 3 ways as a sum of consecutive naturals, for example, 1052594 + ... + 1058727.

It is an arithmetic number, because the mean of its divisors is an integer number (1619383974).

Almost surely, 2^6475421507 is an apocalyptic number.

6475421507 is a deficient number, since it is larger than the sum of its proper divisors (2114389).

6475421507 is a wasteful number, since it uses less digits than its factorization.

6475421507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114388.

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 6475421507 is about 80470.0037715918. The cubic root of 6475421507 is about 1863.9003123935.

The spelling of 6475421507 in words is "six billion, four hundred seventy-five million, four hundred twenty-one thousand, five hundred seven".