2061449185939 has 16 divisors (see below), whose sum is σ = 2421884241504. Its totient is φ = 1729857542400.

The previous prime is 2061449185891. The next prime is 2061449185979. The reversal of 2061449185939 is 9395819441602.

It is not a de Polignac number, because 2061449185939 - 2¹⁵ = 2061449153171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061449185979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13004719 + ... + 13162279.

It is an arithmetic number, because the mean of its divisors is an integer number (151367765094).

Almost surely, 2^{2061449185939} is an apocalyptic number.

2061449185939 is a deficient number, since it is larger than the sum of its proper divisors (360435055565).

2061449185939 is a wasteful number, since it uses less digits than its factorization.

2061449185939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249078.

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 2061449185939 in words is "two trillion, sixty-one billion, four hundred forty-nine million, one hundred eighty-five thousand, nine hundred thirty-nine".