1913800313220 has 48 divisors (see below), whose sum is σ = 5489339442048. Its totient is φ = 497899267840.

The previous prime is 1913800313209. The next prime is 1913800313239. The reversal of 1913800313220 is 223130083191.

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, 388981344 + ... + 388986263.

It is an arithmetic number, because the mean of its divisors is an integer number (114361238376).

Almost surely, 2^{1913800313220} is an apocalyptic number.

1913800313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1913800313220 is an abundant number, since it is smaller than the sum of its proper divisors (3575539128828).

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

1913800313220 is a wasteful number, since it uses less digits than its factorization.

1913800313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777967660 (or 777967658 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 1913800313220 in words is "one trillion, nine hundred thirteen billion, eight hundred million, three hundred thirteen thousand, two hundred twenty".