7214775889 has 2 divisors, whose sum is σ = 7214775890. Its totient is φ = 7214775888.

The previous prime is 7214775881. The next prime is 7214775929. The reversal of 7214775889 is 9885774127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5627550289 + 1587225600 = 75017^2 + 39840^2 .

It is a cyclic number.

It is not a de Polignac number, because 7214775889 - 2³ = 7214775881 is a prime.

It is a super-2 number, since 2×7214775889² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7214775881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607387944 + 3607387945.

It is an arithmetic number, because the mean of its divisors is an integer number (3607387945).

Almost surely, 2^7214775889 is an apocalyptic number.

It is an amenable number.

7214775889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7214775889 is an equidigital number, since it uses as much as digits as its factorization.

7214775889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7902720, while the sum is 58.

The square root of 7214775889 is about 84939.8368788168. The cubic root of 7214775889 is about 1932.2987892285.

The spelling of 7214775889 in words is "seven billion, two hundred fourteen million, seven hundred seventy-five thousand, eight hundred eighty-nine".