768453661 has 8 divisors (see below), whose sum is σ = 792056448. Its totient is φ = 745206000.

The previous prime is 768453649. The next prime is 768453683. The reversal of 768453661 is 166354867.

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

It is a cyclic number.

It is not a de Polignac number, because 768453661 - 2¹¹ = 768451613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768453641) 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, 84385 + ... + 93046.

It is an arithmetic number, because the mean of its divisors is an integer number (99007056).

Almost surely, 2^768453661 is an apocalyptic number.

768453661 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

768453661 is a deficient number, since it is larger than the sum of its proper divisors (23602787).

768453661 is a wasteful number, since it uses less digits than its factorization.

768453661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177563.

The product of its digits is 725760, while the sum is 46.

The square root of 768453661 is about 27720.9967533637. The cubic root of 768453661 is about 915.9516752886.

The spelling of 768453661 in words is "seven hundred sixty-eight million, four hundred fifty-three thousand, six hundred sixty-one".