2061820433 has 4 divisors (see below), whose sum is σ = 2061924900. Its totient is φ = 2061715968.

The previous prime is 2061820417. The next prime is 2061820531. The reversal of 2061820433 is 3340281602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 396527569 + 1665292864 = 19913^2 + 40808^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061820433 - 2⁴ = 2061820417 is a prime.

It is a super-2 number, since 2×2061820433² = 8502206995872614978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2061820396 and 2061820405.

It is not an unprimeable number, because it can be changed into a prime (2061820933) 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, 12608 + ... + 65441.

It is an arithmetic number, because the mean of its divisors is an integer number (515481225).

Almost surely, 2^2061820433 is an apocalyptic number.

It is an amenable number.

2061820433 is a deficient number, since it is larger than the sum of its proper divisors (104467).

2061820433 is an equidigital number, since it uses as much as digits as its factorization.

2061820433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104466.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2061820433 is about 45407.2729086432. The cubic root of 2061820433 is about 1272.7710245199.

The spelling of 2061820433 in words is "two billion, sixty-one million, eight hundred twenty thousand, four hundred thirty-three".