1812900797480 has 32 divisors (see below), whose sum is σ = 4082216140800. Its totient is φ = 724593324096.

The previous prime is 1812900797459. The next prime is 1812900797549. The reversal of 1812900797480 is 847970092181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17666792 + ... + 17769111.

It is an arithmetic number, because the mean of its divisors is an integer number (127569254400).

Almost surely, 2^{1812900797480} is an apocalyptic number.

1812900797480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1812900797480 is an abundant number, since it is smaller than the sum of its proper divisors (2269315343320).

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

1812900797480 is a wasteful number, since it uses less digits than its factorization.

1812900797480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35437193 (or 35437189 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 56.

The spelling of 1812900797480 in words is "one trillion, eight hundred twelve billion, nine hundred million, seven hundred ninety-seven thousand, four hundred eighty".