8451428287 has 2 divisors, whose sum is σ = 8451428288. Its totient is φ = 8451428286.

The previous prime is 8451428243. The next prime is 8451428299. The reversal of 8451428287 is 7828241548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8451428287 - 2⁷ = 8451428159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8451428287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8451428387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4225714143 + 4225714144.

It is an arithmetic number, because the mean of its divisors is an integer number (4225714144).

Almost surely, 2^8451428287 is an apocalyptic number.

8451428287 is a deficient number, since it is larger than the sum of its proper divisors (1).

8451428287 is an equidigital number, since it uses as much as digits as its factorization.

8451428287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1146880, while the sum is 49.

The square root of 8451428287 is about 91931.6500830916. The cubic root of 8451428287 is about 2036.9328095759.

The spelling of 8451428287 in words is "eight billion, four hundred fifty-one million, four hundred twenty-eight thousand, two hundred eighty-seven".