389061906523 has 2 divisors, whose sum is σ = 389061906524. Its totient is φ = 389061906522.

The previous prime is 389061906469. The next prime is 389061906539. The reversal of 389061906523 is 325609160983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389061906523 - 2¹⁷ = 389061775451 is a prime.

It is not a weakly prime, because it can be changed into another prime (389061906323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194530953261 + 194530953262.

It is an arithmetic number, because the mean of its divisors is an integer number (194530953262).

Almost surely, 2^389061906523 is an apocalyptic number.

389061906523 is a deficient number, since it is larger than the sum of its proper divisors (1).

389061906523 is an equidigital number, since it uses as much as digits as its factorization.

389061906523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 389061906523 in words is "three hundred eighty-nine billion, sixty-one million, nine hundred six thousand, five hundred twenty-three".