6402275217 has 36 divisors (see below), whose sum is σ = 10290899892. Its totient is φ = 3812702400.

The previous prime is 6402275213. The next prime is 6402275233. The reversal of 6402275217 is 7125722046.

It is a happy number.

6402275217 is a `hidden beast` number, since 640 + 2 + 2 + 7 + 5 + 2 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2017716561 + 4384558656 = 44919^2 + 66216^2 .

It is not a de Polignac number, because 6402275217 - 2² = 6402275213 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6402275213) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 83967 + ... + 140907.

Almost surely, 2^6402275217 is an apocalyptic number.

It is an amenable number.

6402275217 is a deficient number, since it is larger than the sum of its proper divisors (3888624675).

6402275217 is a wasteful number, since it uses less digits than its factorization.

6402275217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57022 (or 56988 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 6402275217 is about 80014.2188426532. The cubic root of 6402275217 is about 1856.8555203331.

The spelling of 6402275217 in words is "six billion, four hundred two million, two hundred seventy-five thousand, two hundred seventeen".