389388652907 has 2 divisors, whose sum is σ = 389388652908. Its totient is φ = 389388652906.

The previous prime is 389388652859. The next prime is 389388652921. The reversal of 389388652907 is 709256883983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389388652907 - 2²⁶ = 389321544043 is a prime.

It is not a weakly prime, because it can be changed into another prime (389388652957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194694326453 + 194694326454.

It is an arithmetic number, because the mean of its divisors is an integer number (194694326454).

Almost surely, 2^389388652907 is an apocalyptic number.

389388652907 is a deficient number, since it is larger than the sum of its proper divisors (1).

389388652907 is an equidigital number, since it uses as much as digits as its factorization.

389388652907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 389388652907 in words is "three hundred eighty-nine billion, three hundred eighty-eight million, six hundred fifty-two thousand, nine hundred seven".