2069996821 has 8 divisors (see below), whose sum is σ = 2149885184. Its totient is φ = 1990928160.

The previous prime is 2069996813. The next prime is 2069996837. The reversal of 2069996821 is 1286999602.

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 2069996821 - 2³ = 2069996813 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 (2069996321) 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, 199776 + ... + 209881.

It is an arithmetic number, because the mean of its divisors is an integer number (268735648).

Almost surely, 2^2069996821 is an apocalyptic number.

It is an amenable number.

2069996821 is a deficient number, since it is larger than the sum of its proper divisors (79888363).

2069996821 is a wasteful number, since it uses less digits than its factorization.

2069996821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409851.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 2069996821 is about 45497.2177281205. The cubic root of 2069996821 is about 1274.4512457954.

The spelling of 2069996821 in words is "two billion, sixty-nine million, nine hundred ninety-six thousand, eight hundred twenty-one".