7889416245 has 24 divisors (see below), whose sum is σ = 13709465016. Its totient is φ = 4197080448.

The previous prime is 7889416237. The next prime is 7889416261. The reversal of 7889416245 is 5426149887.

It is a happy number.

7889416245 is a `hidden beast` number, since 7 + 8 + 8 + 9 + 4 + 1 + 624 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2972321361 + 4917094884 = 54519^2 + 70122^2 .

It is not a de Polignac number, because 7889416245 - 2³ = 7889416237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7889416191 and 7889416200.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 202942 + ... + 238671.

It is an arithmetic number, because the mean of its divisors is an integer number (571227709).

Almost surely, 2^7889416245 is an apocalyptic number.

It is an amenable number.

7889416245 is a deficient number, since it is larger than the sum of its proper divisors (5820048771).

7889416245 is a wasteful number, since it uses less digits than its factorization.

7889416245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442021 (or 442018 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 7889416245 is about 88822.3859452109. The cubic root of 7889416245 is about 1990.7418969754.

The spelling of 7889416245 in words is "seven billion, eight hundred eighty-nine million, four hundred sixteen thousand, two hundred forty-five".