389212669268 has 12 divisors (see below), whose sum is σ = 681681852852. Its totient is φ = 194446425600.

The previous prime is 389212669267. The next prime is 389212669297. The reversal of 389212669268 is 862966212983.

It can be written as a sum of positive squares in 2 ways, for example, as 165443935504 + 223768733764 = 406748^2 + 473042^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 389212669268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389212669267) 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, 39971783 + ... + 39981518.

It is an arithmetic number, because the mean of its divisors is an integer number (56806821071).

Almost surely, 2^389212669268 is an apocalyptic number.

It is an amenable number.

389212669268 is a deficient number, since it is larger than the sum of its proper divisors (292469183584).

389212669268 is a wasteful number, since it uses less digits than its factorization.

389212669268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79954522 (or 79954520 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 62.

The spelling of 389212669268 in words is "three hundred eighty-nine billion, two hundred twelve million, six hundred sixty-nine thousand, two hundred sixty-eight".