2011986413 has 4 divisors (see below), whose sum is σ = 2022199740. Its totient is φ = 2001773088.

The previous prime is 2011986401. The next prime is 2011986439. The reversal of 2011986413 is 3146891102.

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 1915200169 + 96786244 = 43763^2 + 9838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011986413 - 2¹⁶ = 2011920877 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 (2011386413) 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, 5106368 + ... + 5106761.

It is an arithmetic number, because the mean of its divisors is an integer number (505549935).

Almost surely, 2^2011986413 is an apocalyptic number.

It is an amenable number.

2011986413 is a deficient number, since it is larger than the sum of its proper divisors (10213327).

2011986413 is a wasteful number, since it uses less digits than its factorization.

2011986413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10213326.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 2011986413 is about 44855.1715301592. The cubic root of 2011986413 is about 1262.4330273005.

The spelling of 2011986413 in words is "two billion, eleven million, nine hundred eighty-six thousand, four hundred thirteen".