2039352821909 has 6 divisors (see below), whose sum is σ = 2208293292546. Its totient is φ = 1882479527760.

The previous prime is 2039352821899. The next prime is 2039352821921. The reversal of 2039352821909 is 9091282539302.

It can be written as a sum of positive squares in 3 ways, for example, as 53217876100 + 1986134945809 = 230690^2 + 1409303^2 .

It is not a de Polignac number, because 2039352821909 - 2¹⁶ = 2039352756373 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 (2039352821809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6033588062 + ... + 6033588399.

It is an arithmetic number, because the mean of its divisors is an integer number (368048882091).

Almost surely, 2^{2039352821909} is an apocalyptic number.

It is an amenable number.

2039352821909 is a deficient number, since it is larger than the sum of its proper divisors (168940470637).

2039352821909 is a wasteful number, since it uses less digits than its factorization.

2039352821909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12067176487 (or 12067176474 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 2039352821909 in words is "two trillion, thirty-nine billion, three hundred fifty-two million, eight hundred twenty-one thousand, nine hundred nine".