389248997489 has 8 divisors (see below), whose sum is σ = 424833445632. Its totient is φ = 353697578640.

The previous prime is 389248997477. The next prime is 389248997507. The reversal of 389248997489 is 984799842983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389248997489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389248997429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8232674 + ... + 8279819.

It is an arithmetic number, because the mean of its divisors is an integer number (53104180704).

Almost surely, 2^389248997489 is an apocalyptic number.

It is an amenable number.

389248997489 is a deficient number, since it is larger than the sum of its proper divisors (35584448143).

389248997489 is a wasteful number, since it uses less digits than its factorization.

389248997489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514647.

The product of its digits is 2257403904, while the sum is 80.

The spelling of 389248997489 in words is "three hundred eighty-nine billion, two hundred forty-eight million, nine hundred ninety-seven thousand, four hundred eighty-nine".