8608920451 has 2 divisors, whose sum is σ = 8608920452. Its totient is φ = 8608920450.

The previous prime is 8608920449. The next prime is 8608920601. The reversal of 8608920451 is 1540298068.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8608920451 - 2¹ = 8608920449 is a prime.

It is a super-2 number, since 2×8608920451² (a number of 21 digits) contains 22 as substring.

Together with 8608920449, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8608920398 and 8608920407.

It is not a weakly prime, because it can be changed into another prime (8608924451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4304460225 + 4304460226.

It is an arithmetic number, because the mean of its divisors is an integer number (4304460226).

Almost surely, 2^8608920451 is an apocalyptic number.

8608920451 is a deficient number, since it is larger than the sum of its proper divisors (1).

8608920451 is an equidigital number, since it uses as much as digits as its factorization.

8608920451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 8608920451 is about 92784.2683379031. The cubic root of 8608920451 is about 2049.5077502212.

The spelling of 8608920451 in words is "eight billion, six hundred eight million, nine hundred twenty thousand, four hundred fifty-one".