8451259979 has 2 divisors, whose sum is σ = 8451259980. Its totient is φ = 8451259978.

The previous prime is 8451259967. The next prime is 8451260039. The reversal of 8451259979 is 9799521548.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8451259979 is a prime.

It is not a weakly prime, because it can be changed into another prime (8451259919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4225629989 + 4225629990.

It is an arithmetic number, because the mean of its divisors is an integer number (4225629990).

Almost surely, 2^8451259979 is an apocalyptic number.

8451259979 is a deficient number, since it is larger than the sum of its proper divisors (1).

8451259979 is an equidigital number, since it uses as much as digits as its factorization.

8451259979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 59.

The square root of 8451259979 is about 91930.7346810630. The cubic root of 8451259979 is about 2036.9192878235.

The spelling of 8451259979 in words is "eight billion, four hundred fifty-one million, two hundred fifty-nine thousand, nine hundred seventy-nine".