11209260878613 has 112 divisors (see below), whose sum is σ = 19280192624640. Its totient is φ = 6380951440032.

The previous prime is 11209260878581. The next prime is 11209260878653. The reversal of 11209260878613 is 31687806290211.

11209260878613 is a `hidden beast` number, since 1 + 1 + 20 + 9 + 2 + 608 + 7 + 8 + 6 + 1 + 3 = 666.

It is not a de Polignac number, because 11209260878613 - 2⁵ = 11209260878581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11209260878613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11209260878653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2240505370 + ... + 2240510372.

Almost surely, 2^{11209260878613} is an apocalyptic number.

It is an amenable number.

11209260878613 is a deficient number, since it is larger than the sum of its proper divisors (8070931746027).

11209260878613 is an equidigital number, since it uses as much as digits as its factorization.

11209260878613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6595 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 11209260878613 in words is "eleven trillion, two hundred nine billion, two hundred sixty million, eight hundred seventy-eight thousand, six hundred thirteen".