1943115455550 has 48 divisors (see below), whose sum is σ = 5102392591152. Its totient is φ = 487683878400.

The previous prime is 1943115455543. The next prime is 1943115455573. The reversal of 1943115455550 is 555545113491.

It is a self number, because there is not a number n which added to its sum of digits gives 1943115455550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381000481 + ... + 381005580.

It is an arithmetic number, because the mean of its divisors is an integer number (106299845649).

Almost surely, 2^{1943115455550} is an apocalyptic number.

1943115455550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1943115455550 is an abundant number, since it is smaller than the sum of its proper divisors (3159277135602).

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

1943115455550 is a wasteful number, since it uses less digits than its factorization.

1943115455550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762006093 (or 762006088 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 48.

The spelling of 1943115455550 in words is "one trillion, nine hundred forty-three billion, one hundred fifteen million, four hundred fifty-five thousand, five hundred fifty".