769242886561 has 4 divisors (see below), whose sum is σ = 769245864772. Its totient is φ = 769239908352.

The previous prime is 769242886523. The next prime is 769242886567. The reversal of 769242886561 is 165688242967.

769242886561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222576368400 + 546666518161 = 471780^2 + 739369^2 .

It is a cyclic number.

It is not a de Polignac number, because 769242886561 - 2¹¹ = 769242884513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 769242886493 and 769242886502.

It is not an unprimeable number, because it can be changed into a prime (769242886567) 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, 1060560 + ... + 1631953.

It is an arithmetic number, because the mean of its divisors is an integer number (192311466193).

Almost surely, 2^769242886561 is an apocalyptic number.

It is an amenable number.

769242886561 is a deficient number, since it is larger than the sum of its proper divisors (2978211).

769242886561 is a wasteful number, since it uses less digits than its factorization.

769242886561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978210.

The product of its digits is 69672960, while the sum is 64.

The spelling of 769242886561 in words is "seven hundred sixty-nine billion, two hundred forty-two million, eight hundred eighty-six thousand, five hundred sixty-one".