11609341964021 has 4 divisors (see below), whose sum is σ = 11610391929132. Its totient is φ = 11608291998912.

The previous prime is 11609341963993. The next prime is 11609341964029. The reversal of 11609341964021 is 12046914390611.

11609341964021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6082211493796 + 5527130470225 = 2466214^2 + 2350985^2 .

It is a cyclic number.

It is not a de Polignac number, because 11609341964021 - 2¹⁸ = 11609341701877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11609341964029) 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, 524965970 + ... + 524988083.

It is an arithmetic number, because the mean of its divisors is an integer number (2902597982283).

Almost surely, 2^{11609341964021} is an apocalyptic number.

It is an amenable number.

11609341964021 is a deficient number, since it is larger than the sum of its proper divisors (1049965111).

11609341964021 is a wasteful number, since it uses less digits than its factorization.

11609341964021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049965110.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 11609341964021 in words is "eleven trillion, six hundred nine billion, three hundred forty-one million, nine hundred sixty-four thousand, twenty-one".