1113843419550 has 144 divisors (see below), whose sum is σ = 3215850301872. Its totient is φ = 275380300800.

The previous prime is 1113843419543. The next prime is 1113843419561. The reversal of 1113843419550 is 559143483111.

1113843419550 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 84 + 3 + 4 + 19 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1113843419496 and 1113843419505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 574021 + ... + 1599120.

It is an arithmetic number, because the mean of its divisors is an integer number (22332293763).

Almost surely, 2^{1113843419550} is an apocalyptic number.

1113843419550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1113843419550 is an abundant number, since it is smaller than the sum of its proper divisors (2102006882322).

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

1113843419550 is a wasteful number, since it uses less digits than its factorization.

1113843419550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173243 (or 2173235 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 1113843419550 in words is "one trillion, one hundred thirteen billion, eight hundred forty-three million, four hundred nineteen thousand, five hundred fifty".