2061899843 has 8 divisors (see below), whose sum is σ = 2067738816. Its totient is φ = 2056069800.

The previous prime is 2061899839. The next prime is 2061899849. The reversal of 2061899843 is 3489981602.

It is a happy number.

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 2061899843 - 2² = 2061899839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2061899791 and 2061899800.

It is not an unprimeable number, because it can be changed into a prime (2061899849) 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, 868448 + ... + 870818.

It is an arithmetic number, because the mean of its divisors is an integer number (258467352).

Almost surely, 2^2061899843 is an apocalyptic number.

2061899843 is a deficient number, since it is larger than the sum of its proper divisors (5838973).

2061899843 is a wasteful number, since it uses less digits than its factorization.

2061899843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4465.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 2061899843 is about 45408.1473196166. The cubic root of 2061899843 is about 1272.7873643602.

The spelling of 2061899843 in words is "two billion, sixty-one million, eight hundred ninety-nine thousand, eight hundred forty-three".