1009539199069 has 16 divisors (see below), whose sum is σ = 1044726190848. Its totient is φ = 975000420352.

The previous prime is 1009539199057. The next prime is 1009539199199. The reversal of 1009539199069 is 9609919359001.

It is not a de Polignac number, because 1009539199069 - 2⁹ = 1009539198557 is a prime.

It is a super-2 number, since 2×1009539199069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1009539198998 and 1009539199016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009539199369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786909 + ... + 1624285.

It is an arithmetic number, because the mean of its divisors is an integer number (65295386928).

Almost surely, 2^{1009539199069} is an apocalyptic number.

It is an amenable number.

1009539199069 is a deficient number, since it is larger than the sum of its proper divisors (35186991779).

1009539199069 is a wasteful number, since it uses less digits than its factorization.

1009539199069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837764.

The product of its (nonzero) digits is 5314410, while the sum is 61.

The spelling of 1009539199069 in words is "one trillion, nine billion, five hundred thirty-nine million, one hundred ninety-nine thousand, sixty-nine".