1820206795 has 16 divisors (see below), whose sum is σ = 2384310240. Its totient is φ = 1322956800.

The previous prime is 1820206781. The next prime is 1820206831. The reversal of 1820206795 is 5976020281.

It is not a de Polignac number, because 1820206795 - 2²⁹ = 1283335883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86251 + ... + 105259.

It is an arithmetic number, because the mean of its divisors is an integer number (149019390).

Almost surely, 2^1820206795 is an apocalyptic number.

1820206795 is a deficient number, since it is larger than the sum of its proper divisors (564103445).

1820206795 is a wasteful number, since it uses less digits than its factorization.

1820206795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20766.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1820206795 is about 42663.8816213434. The cubic root of 1820206795 is about 1220.9753901280.

The spelling of 1820206795 in words is "one billion, eight hundred twenty million, two hundred six thousand, seven hundred ninety-five".