11863584666953 has 4 divisors (see below), whose sum is σ = 11901009224580. Its totient is φ = 11826160109328.

The previous prime is 11863584666929. The next prime is 11863584667007. The reversal of 11863584666953 is 35966648536811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3683052280384 + 8180532386569 = 1919128^2 + 2860163^2 .

It is a cyclic number.

It is not a de Polignac number, because 11863584666953 - 2⁸ = 11863584666697 is a prime.

It is a super-2 number, since 2×11863584666953² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11863584666253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18712278338 + ... + 18712278971.

It is an arithmetic number, because the mean of its divisors is an integer number (2975252306145).

Almost surely, 2^{11863584666953} is an apocalyptic number.

It is an amenable number.

11863584666953 is a deficient number, since it is larger than the sum of its proper divisors (37424557627).

11863584666953 is an equidigital number, since it uses as much as digits as its factorization.

11863584666953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37424557626.

The product of its digits is 671846400, while the sum is 71.

The spelling of 11863584666953 in words is "eleven trillion, eight hundred sixty-three billion, five hundred eighty-four million, six hundred sixty-six thousand, nine hundred fifty-three".