768868898 has 18 divisors (see below), whose sum is σ = 1342076913. Its totient is φ = 329397600.

The previous prime is 768868873. The next prime is 768868901. The reversal of 768868898 is 898868867.

It can be written as a sum of positive squares in 2 ways, for example, as 768786529 + 82369 = 27727^2 + 287^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19607.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 273098 + ... + 275898.

Almost surely, 2^768868898 is an apocalyptic number.

768868898 is a deficient number, since it is larger than the sum of its proper divisors (573208015).

768868898 is an frugal number, since it uses more digits than its factorization.

768868898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618 (or 2810 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 68.

The square root of 768868898 is about 27728.4853174493. The cubic root of 768868898 is about 916.1166249618.

The spelling of 768868898 in words is "seven hundred sixty-eight million, eight hundred sixty-eight thousand, eight hundred ninety-eight".