768981045 has 32 divisors (see below), whose sum is σ = 1407202560. Its totient is φ = 351267840.

The previous prime is 768981041. The next prime is 768981047. The reversal of 768981045 is 540189867.

It is not a de Polignac number, because 768981045 - 2² = 768981041 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 768980985 and 768981003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768981041) 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 in 31 ways as a sum of consecutive naturals, for example, 225211 + ... + 228599.

It is an arithmetic number, because the mean of its divisors is an integer number (43975080).

Almost surely, 2^768981045 is an apocalyptic number.

It is an amenable number.

768981045 is a deficient number, since it is larger than the sum of its proper divisors (638221515).

768981045 is a wasteful number, since it uses less digits than its factorization.

768981045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 768981045 is about 27730.5074782269. The cubic root of 768981045 is about 916.1611643003.

The spelling of 768981045 in words is "seven hundred sixty-eight million, nine hundred eighty-one thousand, forty-five".