768822090389 has 4 divisors (see below), whose sum is σ = 774690961440. Its totient is φ = 762953219340.

The previous prime is 768822090329. The next prime is 768822090403. The reversal of 768822090389 is 983090228867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 768822090389 - 2²⁸ = 768553654933 is a prime.

It is a super-2 number, since 2×768822090389² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768822090329) 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, 2934435329 + ... + 2934435590.

It is an arithmetic number, because the mean of its divisors is an integer number (193672740360).

Almost surely, 2^768822090389 is an apocalyptic number.

It is an amenable number.

768822090389 is a deficient number, since it is larger than the sum of its proper divisors (5868871051).

768822090389 is a wasteful number, since it uses less digits than its factorization.

768822090389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868871050.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 768822090389 in words is "seven hundred sixty-eight billion, eight hundred twenty-two million, ninety thousand, three hundred eighty-nine".