1819102011020 has 24 divisors (see below), whose sum is σ = 4365844826784. Its totient is φ = 623692118016.

The previous prime is 1819102011011. The next prime is 1819102011059. The reversal of 1819102011020 is 201102019181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6496792757 + ... + 6496793036.

It is an arithmetic number, because the mean of its divisors is an integer number (181910201116).

Almost surely, 2^{1819102011020} is an apocalyptic number.

1819102011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1819102011020 is an abundant number, since it is smaller than the sum of its proper divisors (2546742815764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1819102011020 is a wasteful number, since it uses less digits than its factorization.

1819102011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993585809 (or 12993585807 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 1819102011020 in words is "one trillion, eight hundred nineteen billion, one hundred two million, eleven thousand, twenty".