768861272 has 16 divisors (see below), whose sum is σ = 1461920400. Its totient is φ = 379015840.

The previous prime is 768861271. The next prime is 768861281. The reversal of 768861272 is 272168867.

It is a super-2 number, since 2×768861272² = 1182295311162915968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768861271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676247 + ... + 677382.

It is an arithmetic number, because the mean of its divisors is an integer number (91370025).

Almost surely, 2^768861272 is an apocalyptic number.

It is an amenable number.

768861272 is a deficient number, since it is larger than the sum of its proper divisors (693059128).

768861272 is a wasteful number, since it uses less digits than its factorization.

768861272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353706 (or 1353702 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 768861272 is about 27728.3478050893. The cubic root of 768861272 is about 916.1135961279.

The spelling of 768861272 in words is "seven hundred sixty-eight million, eight hundred sixty-one thousand, two hundred seventy-two".