765822012 has 12 divisors (see below), whose sum is σ = 1786918056. Its totient is φ = 255274000.

The previous prime is 765821983. The next prime is 765822017. The reversal of 765822012 is 210228567.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765822017) 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, 31909239 + ... + 31909262.

It is an arithmetic number, because the mean of its divisors is an integer number (148909838).

Almost surely, 2^765822012 is an apocalyptic number.

It is an amenable number.

765822012 is an abundant number, since it is smaller than the sum of its proper divisors (1021096044).

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

765822012 is a wasteful number, since it uses less digits than its factorization.

765822012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63818508 (or 63818506 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 765822012 is about 27673.4893354633. The cubic root of 765822012 is about 914.9048890359.

The spelling of 765822012 in words is "seven hundred sixty-five million, eight hundred twenty-two thousand, twelve".