11643210590538 has 32 divisors (see below), whose sum is σ = 23681594534400. Its totient is φ = 3815210684016.

The previous prime is 11643210590537. The next prime is 11643210590549. The reversal of 11643210590538 is 83509501234611.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11643210590537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18300195 + ... + 18925737.

It is an arithmetic number, because the mean of its divisors is an integer number (740049829200).

Almost surely, 2^{11643210590538} is an apocalyptic number.

11643210590538 is an abundant number, since it is smaller than the sum of its proper divisors (12038383943862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11643210590538 is a wasteful number, since it uses less digits than its factorization.

11643210590538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678186.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 11643210590538 in words is "eleven trillion, six hundred forty-three billion, two hundred ten million, five hundred ninety thousand, five hundred thirty-eight".