1820190920182 has 4 divisors (see below), whose sum is σ = 2730286380276. Its totient is φ = 910095460090.

The previous prime is 1820190920129. The next prime is 1820190920201. The reversal of 1820190920182 is 2810290910281.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455047730044 + ... + 455047730047.

It is an arithmetic number, because the mean of its divisors is an integer number (682571595069).

Almost surely, 2^{1820190920182} is an apocalyptic number.

1820190920182 is a deficient number, since it is larger than the sum of its proper divisors (910095460094).

1820190920182 is an equidigital number, since it uses as much as digits as its factorization.

1820190920182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910095460093.

The product of its (nonzero) digits is 41472, while the sum is 43.

Subtracting 1820190920182 from its reverse (2810290910281), we obtain a palindrome (990099990099).

The spelling of 1820190920182 in words is "one trillion, eight hundred twenty billion, one hundred ninety million, nine hundred twenty thousand, one hundred eighty-two".