389642399063 has 4 divisors (see below), whose sum is σ = 398703850248. Its totient is φ = 380580947880.

The previous prime is 389642399059. The next prime is 389642399071. The reversal of 389642399063 is 360993246983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389642399063 - 2² = 389642399059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389642398987 and 389642399005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389642396063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4530725528 + ... + 4530725613.

It is an arithmetic number, because the mean of its divisors is an integer number (99675962562).

Almost surely, 2^389642399063 is an apocalyptic number.

389642399063 is a deficient number, since it is larger than the sum of its proper divisors (9061451185).

389642399063 is an equidigital number, since it uses as much as digits as its factorization.

389642399063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061451184.

The product of its (nonzero) digits is 45349632, while the sum is 62.

The spelling of 389642399063 in words is "three hundred eighty-nine billion, six hundred forty-two million, three hundred ninety-nine thousand, sixty-three".