7895488889 has 2 divisors, whose sum is σ = 7895488890. Its totient is φ = 7895488888.

The previous prime is 7895488849. The next prime is 7895488897. The reversal of 7895488889 is 9888845987.

7895488889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7479655225 + 415833664 = 86485^2 + 20392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7895488889 is a prime.

It is not a weakly prime, because it can be changed into another prime (7895488819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3947744444 + 3947744445.

It is an arithmetic number, because the mean of its divisors is an integer number (3947744445).

Almost surely, 2^7895488889 is an apocalyptic number.

It is an amenable number.

7895488889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7895488889 is an equidigital number, since it uses as much as digits as its factorization.

7895488889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 371589120, while the sum is 74.

The square root of 7895488889 is about 88856.5635673584. The cubic root of 7895488889 is about 1991.2525374780.

The spelling of 7895488889 in words is "seven billion, eight hundred ninety-five million, four hundred eighty-eight thousand, eight hundred eighty-nine".