769111212121 has 16 divisors (see below), whose sum is σ = 900926885376. Its totient is φ = 642882476736.

The previous prime is 769111212049. The next prime is 769111212151. The reversal of 769111212121 is 121212111967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769111212121 is a prime.

It is a super-2 number, since 2×769111212121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (769111212151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4128586 + ... + 4310851.

It is an arithmetic number, because the mean of its divisors is an integer number (56307930336).

Almost surely, 2^769111212121 is an apocalyptic number.

It is an amenable number.

769111212121 is a deficient number, since it is larger than the sum of its proper divisors (131815673255).

769111212121 is a wasteful number, since it uses less digits than its factorization.

769111212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439768.

The product of its digits is 3024, while the sum is 34.

The spelling of 769111212121 in words is "seven hundred sixty-nine billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty-one".