1820813127898 has 8 divisors (see below), whose sum is σ = 2731225622400. Its totient is φ = 910404587100.

The previous prime is 1820813127871. The next prime is 1820813127899. The reversal of 1820813127898 is 8987213180281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1820813127899) 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, 837573 + ... + 2084023.

It is an arithmetic number, because the mean of its divisors is an integer number (341403202800).

Almost surely, 2^{1820813127898} is an apocalyptic number.

1820813127898 is a deficient number, since it is larger than the sum of its proper divisors (910412494502).

1820813127898 is a wasteful number, since it uses less digits than its factorization.

1820813127898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976852.

The product of its (nonzero) digits is 3096576, while the sum is 58.

The spelling of 1820813127898 in words is "one trillion, eight hundred twenty billion, eight hundred thirteen million, one hundred twenty-seven thousand, eight hundred ninety-eight".