6415215475 has 6 divisors (see below), whose sum is σ = 7954867220. Its totient is φ = 5132172360.

The previous prime is 6415215467. The next prime is 6415215493. The reversal of 6415215475 is 5745125146.

It is not a de Polignac number, because 6415215475 - 2³ = 6415215467 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128304285 + ... + 128304334.

Almost surely, 2^6415215475 is an apocalyptic number.

6415215475 is a deficient number, since it is larger than the sum of its proper divisors (1539651745).

6415215475 is a wasteful number, since it uses less digits than its factorization.

6415215475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256608629 (or 256608624 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The square root of 6415215475 is about 80095.0402646756. The cubic root of 6415215475 is about 1858.1057018845.

The spelling of 6415215475 in words is "six billion, four hundred fifteen million, two hundred fifteen thousand, four hundred seventy-five".