768761281 has 8 divisors (see below), whose sum is σ = 810445824. Its totient is φ = 728132160.

The previous prime is 768761249. The next prime is 768761291. The reversal of 768761281 is 182167867.

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 768761281 - 2⁵ = 768761249 is a prime.

It is a super-2 number, since 2×768761281² = 1181987814329521922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768761291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262360 + ... + 265273.

It is an arithmetic number, because the mean of its divisors is an integer number (101305728).

Almost surely, 2^768761281 is an apocalyptic number.

It is an amenable number.

768761281 is a deficient number, since it is larger than the sum of its proper divisors (41684543).

768761281 is a wasteful number, since it uses less digits than its factorization.

768761281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527711.

The product of its digits is 225792, while the sum is 46.

The square root of 768761281 is about 27726.5446999802. The cubic root of 768761281 is about 916.0738806468.

The spelling of 768761281 in words is "seven hundred sixty-eight million, seven hundred sixty-one thousand, two hundred eighty-one".