765820011 has 12 divisors (see below), whose sum is σ = 1122359336. Its totient is φ = 464133120.

The previous prime is 765819997. The next prime is 765820051. The reversal of 765820011 is 110028567.

It is not a de Polignac number, because 765820011 - 2⁹ = 765819499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (765820051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054486 + ... + 1055211.

Almost surely, 2^765820011 is an apocalyptic number.

765820011 is a deficient number, since it is larger than the sum of its proper divisors (356539325).

765820011 is a wasteful number, since it uses less digits than its factorization.

765820011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109722 (or 2109711 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 765820011 is about 27673.4531817047. The cubic root of 765820011 is about 914.9040921901.

Adding to 765820011 its reverse (110028567), we get a palindrome (875848578).

The spelling of 765820011 in words is "seven hundred sixty-five million, eight hundred twenty thousand, eleven".