768729156 has 24 divisors (see below), whose sum is σ = 1931678784. Its totient is φ = 236532000.

The previous prime is 768729139. The next prime is 768729163. The reversal of 768729156 is 651927867.

It is a junction number, because it is equal to n+sod(n) for n = 768729099 and 768729108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463720 + ... + 2464031.

It is an arithmetic number, because the mean of its divisors is an integer number (80486616).

Almost surely, 2^768729156 is an apocalyptic number.

It is an amenable number.

768729156 is an abundant number, since it is smaller than the sum of its proper divisors (1162949628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768729156 is a wasteful number, since it uses less digits than its factorization.

768729156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927771 (or 4927769 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 768729156 is about 27725.9653754382. The cubic root of 768729156 is about 916.0611201692.

The spelling of 768729156 in words is "seven hundred sixty-eight million, seven hundred twenty-nine thousand, one hundred fifty-six".