11509000419172 has 6 divisors (see below), whose sum is σ = 20140750733558. Its totient is φ = 5754500209584.

The previous prime is 11509000419157. The next prime is 11509000419223. The reversal of 11509000419172 is 27191400090511.

It can be written as a sum of positive squares in only one way, i.e., 10474129613376 + 1034870805796 = 3236376^2 + 1017286^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1438625052393 + ... + 1438625052400.

Almost surely, 2^{11509000419172} is an apocalyptic number.

It is an amenable number.

11509000419172 is a deficient number, since it is larger than the sum of its proper divisors (8631750314386).

11509000419172 is a wasteful number, since it uses less digits than its factorization.

11509000419172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877250104797 (or 2877250104795 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 40.

The spelling of 11509000419172 in words is "eleven trillion, five hundred nine billion, four hundred nineteen thousand, one hundred seventy-two".