765770072 has 16 divisors (see below), whose sum is σ = 1511388600. Its totient is φ = 362733120.

The previous prime is 765770059. The next prime is 765770081. The reversal of 765770072 is 270077567.

765770072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2518829 + ... + 2519132.

Almost surely, 2^765770072 is an apocalyptic number.

It is an amenable number.

765770072 is a deficient number, since it is larger than the sum of its proper divisors (745618528).

765770072 is a wasteful number, since it uses less digits than its factorization.

765770072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037986 (or 5037982 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 41.

The square root of 765770072 is about 27672.5508762745. The cubic root of 765770072 is about 914.8842048415.

The spelling of 765770072 in words is "seven hundred sixty-five million, seven hundred seventy thousand, seventy-two".