389777817396 has 36 divisors (see below), whose sum is σ = 999678097376. Its totient is φ = 118114489680.

The previous prime is 389777817391. The next prime is 389777817413. The reversal of 389777817396 is 693718777983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389777817391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134219560 + ... + 134222463.

Almost surely, 2^389777817396 is an apocalyptic number.

It is an amenable number.

389777817396 is an abundant number, since it is smaller than the sum of its proper divisors (609900279980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389777817396 is a wasteful number, since it uses less digits than its factorization.

389777817396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268442052 (or 268442039 counting only the distinct ones).

The product of its digits is 672126336, while the sum is 75.

The spelling of 389777817396 in words is "three hundred eighty-nine billion, seven hundred seventy-seven million, eight hundred seventeen thousand, three hundred ninety-six".