2061399413 has 8 divisors (see below), whose sum is σ = 2218440600. Its totient is φ = 1908334080.

The previous prime is 2061399401. The next prime is 2061399419. The reversal of 2061399413 is 3149931602.

It can be written as a sum of positive squares in 4 ways, for example, as 14922769 + 2046476644 = 3863^2 + 45238^2 .

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 2061399413 - 2¹⁰ = 2061398389 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 (2061399419) 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, 992888 + ... + 994961.

It is an arithmetic number, because the mean of its divisors is an integer number (277305075).

Almost surely, 2^2061399413 is an apocalyptic number.

It is an amenable number.

2061399413 is a deficient number, since it is larger than the sum of its proper divisors (157041187).

2061399413 is a wasteful number, since it uses less digits than its factorization.

2061399413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987927.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 2061399413 is about 45402.6366304866. The cubic root of 2061399413 is about 1272.6843861095.

The spelling of 2061399413 in words is "two billion, sixty-one million, three hundred ninety-nine thousand, four hundred thirteen".