806287618450 has 24 divisors (see below), whose sum is σ = 1500702291540. Its totient is φ = 322298419200.

The previous prime is 806287618399. The next prime is 806287618457. The reversal of 806287618450 is 54816782608.

It can be written as a sum of positive squares in 6 ways, for example, as 261160859521 + 545126758929 = 511039^2 + 738327^2 .

It is a junction number, because it is equal to n+sod(n) for n = 806287618391 and 806287618400.

It is not an unprimeable number, because it can be changed into a prime (806287618457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5340511 + ... + 5489410.

Almost surely, 2^806287618450 is an apocalyptic number.

806287618450 is a deficient number, since it is larger than the sum of its proper divisors (694414673090).

806287618450 is a wasteful number, since it uses less digits than its factorization.

806287618450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831422 (or 10831417 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 806287618450 in words is "eight hundred six billion, two hundred eighty-seven million, six hundred eighteen thousand, four hundred fifty".