851080499 has 2 divisors, whose sum is σ = 851080500. Its totient is φ = 851080498.

The previous prime is 851080463. The next prime is 851080591. The reversal of 851080499 is 994080158.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-851080499 is a prime.

It is not a weakly prime, because it can be changed into another prime (851080409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425540249 + 425540250.

It is an arithmetic number, because the mean of its divisors is an integer number (425540250).

Almost surely, 2^851080499 is an apocalyptic number.

851080499 is a deficient number, since it is larger than the sum of its proper divisors (1).

851080499 is an equidigital number, since it uses as much as digits as its factorization.

851080499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 851080499 is about 29173.2839940930. The cubic root of 851080499 is about 947.6694485572.

The spelling of 851080499 in words is "eight hundred fifty-one million, eighty thousand, four hundred ninety-nine".