8622788857 has 2 divisors, whose sum is σ = 8622788858. Its totient is φ = 8622788856.

The previous prime is 8622788851. The next prime is 8622788897. The reversal of 8622788857 is 7588872268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5489476281 + 3133312576 = 74091^2 + 55976^2 .

It is a cyclic number.

It is not a de Polignac number, because 8622788857 - 2⁷ = 8622788729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8622788795 and 8622788804.

It is not a weakly prime, because it can be changed into another prime (8622788851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4311394428 + 4311394429.

It is an arithmetic number, because the mean of its divisors is an integer number (4311394429).

Almost surely, 2^8622788857 is an apocalyptic number.

It is an amenable number.

8622788857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8622788857 is an equidigital number, since it uses as much as digits as its factorization.

8622788857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24084480, while the sum is 61.

The square root of 8622788857 is about 92858.9729482294. The cubic root of 8622788857 is about 2050.6077006211.

The spelling of 8622788857 in words is "eight billion, six hundred twenty-two million, seven hundred eighty-eight thousand, eight hundred fifty-seven".