11438528614661 has 8 divisors (see below), whose sum is σ = 11690959470624. Its totient is φ = 11188826741200.

The previous prime is 11438528614567. The next prime is 11438528614687. The reversal of 11438528614661 is 16641682583411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11438528614661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11438528614597 and 11438528614606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438528614361) 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 7 ways as a sum of consecutive naturals, for example, 682237151 + ... + 682253916.

It is an arithmetic number, because the mean of its divisors is an integer number (1461369933828).

Almost surely, 2^{11438528614661} is an apocalyptic number.

It is an amenable number.

11438528614661 is a deficient number, since it is larger than the sum of its proper divisors (252430855963).

11438528614661 is a wasteful number, since it uses less digits than its factorization.

11438528614661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364491251.

The product of its digits is 6635520, while the sum is 56.

The spelling of 11438528614661 in words is "eleven trillion, four hundred thirty-eight billion, five hundred twenty-eight million, six hundred fourteen thousand, six hundred sixty-one".