7685020762969 has 9 divisors (see below), whose sum is σ = 8447205100831. Its totient is φ = 6986354789920.

The previous prime is 7685020762963. The next prime is 7685020762987. The reversal of 7685020762969 is 9692670205867.

The square root of 7685020762969 is 2772187.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1071318152025 + 6613702610944 = 1035045^2 + 2571712^2 .

It is not a de Polignac number, because 7685020762969 - 2²⁵ = 7684987208537 is a prime.

It is a super-2 number, since 2×7685020762969² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7685020762963) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30368049 + ... + 30620065.

Almost surely, 2^{7685020762969} is an apocalyptic number.

7685020762969 is the 2772187-th square number.

7685020762969 is the 1386094-th centered octagonal number.

It is an amenable number.

7685020762969 is a deficient number, since it is larger than the sum of its proper divisors (762184337862).

7685020762969 is an frugal number, since it uses more digits than its factorization.

7685020762969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504056 (or 252028 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 67.

The spelling of 7685020762969 in words is "seven trillion, six hundred eighty-five billion, twenty million, seven hundred sixty-two thousand, nine hundred sixty-nine".