11553764243638 has 8 divisors (see below), whose sum is σ = 17457147434232. Its totient is φ = 5734715098896.

The previous prime is 11553764243629. The next prime is 11553764243639. The reversal of 11553764243638 is 83634246735511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553764243639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21083511120 + ... + 21083511667.

It is an arithmetic number, because the mean of its divisors is an integer number (2182143429279).

Almost surely, 2^{11553764243638} is an apocalyptic number.

11553764243638 is a deficient number, since it is larger than the sum of its proper divisors (5903383190594).

11553764243638 is a wasteful number, since it uses less digits than its factorization.

11553764243638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42167022926.

The product of its digits is 43545600, while the sum is 58.

The spelling of 11553764243638 in words is "eleven trillion, five hundred fifty-three billion, seven hundred sixty-four million, two hundred forty-three thousand, six hundred thirty-eight".