7128213027 has 16 divisors (see below), whose sum is σ = 10247102880. Its totient is φ = 4381569792.

The previous prime is 7128213007. The next prime is 7128213041. The reversal of 7128213027 is 7203128217.

It is not a de Polignac number, because 7128213027 - 2¹² = 7128208931 is a prime.

It is a super-2 number, since 2×7128213027² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7128213007) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 70002 + ... + 138407.

It is an arithmetic number, because the mean of its divisors is an integer number (640443930).

Almost surely, 2^7128213027 is an apocalyptic number.

7128213027 is a deficient number, since it is larger than the sum of its proper divisors (3118889853).

7128213027 is a wasteful number, since it uses less digits than its factorization.

7128213027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209302.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 7128213027 is about 84428.7452648682. The cubic root of 7128213027 is about 1924.5397698440.

The spelling of 7128213027 in words is "seven billion, one hundred twenty-eight million, two hundred thirteen thousand, twenty-seven".