8616738857 has 2 divisors, whose sum is σ = 8616738858. Its totient is φ = 8616738856.

The previous prime is 8616738829. The next prime is 8616738917. The reversal of 8616738857 is 7588376168.

It is a happy number.

8616738857 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4463709721 + 4153029136 = 66811^2 + 64444^2 .

It is a cyclic number.

It is not a de Polignac number, because 8616738857 - 2¹⁶ = 8616673321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8616738796 and 8616738805.

It is not a weakly prime, because it can be changed into another prime (8616738817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4308369428 + 4308369429.

It is an arithmetic number, because the mean of its divisors is an integer number (4308369429).

Almost surely, 2^8616738857 is an apocalyptic number.

It is an amenable number.

8616738857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8616738857 is an equidigital number, since it uses as much as digits as its factorization.

8616738857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 59.

The square root of 8616738857 is about 92826.3909510652. The cubic root of 8616738857 is about 2050.1279997015.

The spelling of 8616738857 in words is "eight billion, six hundred sixteen million, seven hundred thirty-eight thousand, eight hundred fifty-seven".