11809153961087 has 24 divisors (see below), whose sum is σ = 14348088058752. Its totient is φ = 9672826086000.

The previous prime is 11809153961053. The next prime is 11809153961089. The reversal of 11809153961087 is 78016935190811.

It is not a de Polignac number, because 11809153961087 - 2¹⁴ = 11809153944703 is a prime.

It is a super-3 number, since 3×11809153961087³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11809153961089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3800489 + ... + 6169442.

It is an arithmetic number, because the mean of its divisors is an integer number (597837002448).

Almost surely, 2^{11809153961087} is an apocalyptic number.

11809153961087 is a deficient number, since it is larger than the sum of its proper divisors (2538934097665).

11809153961087 is a wasteful number, since it uses less digits than its factorization.

11809153961087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971019 (or 9971012 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 59.

The spelling of 11809153961087 in words is "eleven trillion, eight hundred nine billion, one hundred fifty-three million, nine hundred sixty-one thousand, eighty-seven".