389986862851 has 2 divisors, whose sum is σ = 389986862852. Its totient is φ = 389986862850.

The previous prime is 389986862717. The next prime is 389986862927. The reversal of 389986862851 is 158268689983.

It is a strong prime.

It is an emirp because it is prime and its reverse (158268689983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389986862851 - 2³⁷ = 252547909379 is a prime.

It is not a weakly prime, because it can be changed into another prime (389986862651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194993431425 + 194993431426.

It is an arithmetic number, because the mean of its divisors is an integer number (194993431426).

Almost surely, 2^389986862851 is an apocalyptic number.

389986862851 is a deficient number, since it is larger than the sum of its proper divisors (1).

389986862851 is an equidigital number, since it uses as much as digits as its factorization.

389986862851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 358318080, while the sum is 73.

The spelling of 389986862851 in words is "three hundred eighty-nine billion, nine hundred eighty-six million, eight hundred sixty-two thousand, eight hundred fifty-one".