2606595017989 has 4 divisors (see below), whose sum is σ = 2613295776780. Its totient is φ = 2599894259200.

The previous prime is 2606595017981. The next prime is 2606595018011. The reversal of 2606595017989 is 9897105956062.

2606595017989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 996868455489 + 1609726562500 = 998433^2 + 1268750^2 .

It is not a de Polignac number, because 2606595017989 - 2³ = 2606595017981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606595017981) 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, 3350378812 + ... + 3350379589.

It is an arithmetic number, because the mean of its divisors is an integer number (653323944195).

Almost surely, 2^{2606595017989} is an apocalyptic number.

It is an amenable number.

2606595017989 is a deficient number, since it is larger than the sum of its proper divisors (6700758791).

2606595017989 is an equidigital number, since it uses as much as digits as its factorization.

2606595017989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700758790.

The product of its (nonzero) digits is 73483200, while the sum is 67.

It can be divided in two parts, 2606 and 595017989, that added together give a palindrome (595020595).

The spelling of 2606595017989 in words is "two trillion, six hundred six billion, five hundred ninety-five million, seventeen thousand, nine hundred eighty-nine".