6412540215 has 16 divisors (see below), whose sum is σ = 10261063008. Its totient is φ = 3419688576.

The previous prime is 6412540181. The next prime is 6412540229. The reversal of 6412540215 is 5120452146.

It is not a de Polignac number, because 6412540215 - 2¹⁸ = 6412278071 is a prime.

It is a super-2 number, since 2×6412540215² = 82241344017984492450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265837 + ... + 288953.

It is an arithmetic number, because the mean of its divisors is an integer number (641316438).

Almost surely, 2^6412540215 is an apocalyptic number.

6412540215 is a deficient number, since it is larger than the sum of its proper divisors (3848522793).

6412540215 is a wasteful number, since it uses less digits than its factorization.

6412540215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41618.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 6412540215 is about 80078.3379884972. The cubic root of 6412540215 is about 1857.8473781630.

The spelling of 6412540215 in words is "six billion, four hundred twelve million, five hundred forty thousand, two hundred fifteen".