389136420811 has 2 divisors, whose sum is σ = 389136420812. Its totient is φ = 389136420810.

The previous prime is 389136420797. The next prime is 389136420887. The reversal of 389136420811 is 118024631983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389136420811 - 2¹³ = 389136412619 is a prime.

It is not a weakly prime, because it can be changed into another prime (389136420011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194568210405 + 194568210406.

It is an arithmetic number, because the mean of its divisors is an integer number (194568210406).

Almost surely, 2^389136420811 is an apocalyptic number.

389136420811 is a deficient number, since it is larger than the sum of its proper divisors (1).

389136420811 is an equidigital number, since it uses as much as digits as its factorization.

389136420811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 389136420811 in words is "three hundred eighty-nine billion, one hundred thirty-six million, four hundred twenty thousand, eight hundred eleven".