389139235047 has 24 divisors (see below), whose sum is σ = 584637975376. Its totient is φ = 258656291712.

The previous prime is 389139234943. The next prime is 389139235073. The reversal of 389139235047 is 740532931983.

389139235047 is a `hidden beast` number, since 3 + 89 + 1 + 39 + 23 + 504 + 7 = 666.

It is not a de Polignac number, because 389139235047 - 2⁷ = 389139234919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389139234984 and 389139235002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389139225047) 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 23 ways as a sum of consecutive naturals, for example, 2294068 + ... + 2457849.

Almost surely, 2^389139235047 is an apocalyptic number.

389139235047 is a deficient number, since it is larger than the sum of its proper divisors (195498740329).

389139235047 is an equidigital number, since it uses as much as digits as its factorization.

389139235047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752269 (or 4752257 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 389139235047 in words is "three hundred eighty-nine billion, one hundred thirty-nine million, two hundred thirty-five thousand, forty-seven".