1083850038509 has 6 divisors (see below), whose sum is σ = 1260805146894. Its totient is φ = 929014318680.

The previous prime is 1083850038487. The next prime is 1083850038521. The reversal of 1083850038509 is 9058300583801.

It can be written as a sum of positive squares in only one way, i.e., 1038055322500 + 45794716009 = 1018850^2 + 213997^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1083850038509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083850038529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11059694222 + ... + 11059694319.

It is an arithmetic number, because the mean of its divisors is an integer number (210134191149).

Almost surely, 2^{1083850038509} is an apocalyptic number.

It is an amenable number.

1083850038509 is a deficient number, since it is larger than the sum of its proper divisors (176955108385).

1083850038509 is an equidigital number, since it uses as much as digits as its factorization.

1083850038509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22119388555 (or 22119388548 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 1083850038509 in words is "one trillion, eighty-three billion, eight hundred fifty million, thirty-eight thousand, five hundred nine".