769334020552021 has 16 divisors (see below), whose sum is σ = 840096143529984. Its totient is φ = 701671210619904.

The previous prime is 769334020551883. The next prime is 769334020552037. The reversal of 769334020552021 is 120255020433967.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769334020552021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769334050552021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4143373780 + ... + 4143559453.

It is an arithmetic number, because the mean of its divisors is an integer number (52506008970624).

Almost surely, 2^{769334020552021} is an apocalyptic number.

It is an amenable number.

769334020552021 is a deficient number, since it is larger than the sum of its proper divisors (70762122977963).

769334020552021 is a wasteful number, since it uses less digits than its factorization.

769334020552021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286933420.

The product of its (nonzero) digits is 2721600, while the sum is 49.

Adding to 769334020552021 its reverse (120255020433967), we get a palindrome (889589040985988).

The spelling of 769334020552021 in words is "seven hundred sixty-nine trillion, three hundred thirty-four billion, twenty million, five hundred fifty-two thousand, twenty-one".