389273538547 has 2 divisors, whose sum is σ = 389273538548. Its totient is φ = 389273538546.

The previous prime is 389273538461. The next prime is 389273538581. The reversal of 389273538547 is 745835372983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389273538547 is a prime.

It is not a weakly prime, because it can be changed into another prime (389273538047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194636769273 + 194636769274.

It is an arithmetic number, because the mean of its divisors is an integer number (194636769274).

Almost surely, 2^389273538547 is an apocalyptic number.

389273538547 is a deficient number, since it is larger than the sum of its proper divisors (1).

389273538547 is an equidigital number, since it uses as much as digits as its factorization.

389273538547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 152409600, while the sum is 64.

It can be divided in two parts, 38927353 and 8547, that added together give a triangular number (38935900 = T₈₈₂₄).

The spelling of 389273538547 in words is "three hundred eighty-nine billion, two hundred seventy-three million, five hundred thirty-eight thousand, five hundred forty-seven".