766536069 has 32 divisors (see below), whose sum is σ = 1176215040. Its totient is φ = 439852032.

The previous prime is 766536049. The next prime is 766536073. The reversal of 766536069 is 960635667.

It is not a de Polignac number, because 766536069 - 2⁵ = 766536037 is a prime.

It is a super-2 number, since 2×766536069² = 1175155090155945522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766536049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66964 + ... + 77570.

It is an arithmetic number, because the mean of its divisors is an integer number (36756720).

Almost surely, 2^766536069 is an apocalyptic number.

It is an amenable number.

766536069 is a deficient number, since it is larger than the sum of its proper divisors (409678971).

766536069 is a wasteful number, since it uses less digits than its factorization.

766536069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749.

The product of its (nonzero) digits is 1224720, while the sum is 48.

The square root of 766536069 is about 27686.3877925597. The cubic root of 766536069 is about 915.1891549576.

It can be divided in two parts, 7665 and 36069, that added together give a palindrome (43734).

The spelling of 766536069 in words is "seven hundred sixty-six million, five hundred thirty-six thousand, sixty-nine".