768651963 has 8 divisors (see below), whose sum is σ = 1029158400. Its totient is φ = 510290088.

The previous prime is 768651901. The next prime is 768651979. The reversal of 768651963 is 369156867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 768651963 - 2¹⁴ = 768635579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (768656963) 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 7 ways as a sum of consecutive naturals, for example, 535303 + ... + 536736.

It is an arithmetic number, because the mean of its divisors is an integer number (128644800).

Almost surely, 2^768651963 is an apocalyptic number.

768651963 is a deficient number, since it is larger than the sum of its proper divisors (260506437).

768651963 is a wasteful number, since it uses less digits than its factorization.

768651963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072281.

The product of its digits is 1632960, while the sum is 51.

The square root of 768651963 is about 27724.5732699351. The cubic root of 768651963 is about 916.0304566286.

The spelling of 768651963 in words is "seven hundred sixty-eight million, six hundred fifty-one thousand, nine hundred sixty-three".