389288763049 has 8 divisors (see below), whose sum is σ = 393348042920. Its totient is φ = 385230422016.

The previous prime is 389288763043. The next prime is 389288763103. The reversal of 389288763049 is 940367882983.

It can be written as a sum of positive squares in 4 ways, for example, as 248781488400 + 140507274649 = 498780^2 + 374843^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 389288763049 - 2³ = 389288763041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389288763041) 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, 614857 + ... + 1075465.

It is an arithmetic number, because the mean of its divisors is an integer number (49168505365).

Almost surely, 2^389288763049 is an apocalyptic number.

It is an amenable number.

389288763049 is a deficient number, since it is larger than the sum of its proper divisors (4059279871).

389288763049 is an equidigital number, since it uses as much as digits as its factorization.

389288763049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469419.

The product of its (nonzero) digits is 125411328, while the sum is 67.

The spelling of 389288763049 in words is "three hundred eighty-nine billion, two hundred eighty-eight million, seven hundred sixty-three thousand, forty-nine".