11865104534361 has 32 divisors (see below), whose sum is σ = 18371170097280. Its totient is φ = 6748593062400.

The previous prime is 11865104534359. The next prime is 11865104534389. The reversal of 11865104534361 is 16343540156811.

It is not a de Polignac number, because 11865104534361 - 2¹ = 11865104534359 is a prime.

It is a super-3 number, since 3×11865104534361³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11865104534361.

It is not an unprimeable number, because it can be changed into a prime (11865104534321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195241410 + ... + 195302171.

It is an arithmetic number, because the mean of its divisors is an integer number (574099065540).

Almost surely, 2^{11865104534361} is an apocalyptic number.

It is an amenable number.

11865104534361 is a deficient number, since it is larger than the sum of its proper divisors (6506065562919).

11865104534361 is a wasteful number, since it uses less digits than its factorization.

11865104534361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390543657.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 11865104534361 in words is "eleven trillion, eight hundred sixty-five billion, one hundred four million, five hundred thirty-four thousand, three hundred sixty-one".