7127783217 has 8 divisors (see below), whose sum is σ = 10559678880. Its totient is φ = 4751855460.

The previous prime is 7127783213. The next prime is 7127783227. The reversal of 7127783217 is 7123877217.

It is not a de Polignac number, because 7127783217 - 2² = 7127783213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7127783213) 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 7 ways as a sum of consecutive naturals, for example, 131995959 + ... + 131996012.

It is an arithmetic number, because the mean of its divisors is an integer number (1319959860).

Almost surely, 2^7127783217 is an apocalyptic number.

It is an amenable number.

7127783217 is a deficient number, since it is larger than the sum of its proper divisors (3431895663).

7127783217 is a wasteful number, since it uses less digits than its factorization.

7127783217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263991980 (or 263991974 counting only the distinct ones).

The product of its digits is 230496, while the sum is 45.

The square root of 7127783217 is about 84426.1998256465. The cubic root of 7127783217 is about 1924.5010877291.

The spelling of 7127783217 in words is "seven billion, one hundred twenty-seven million, seven hundred eighty-three thousand, two hundred seventeen".