11747564641 has 8 divisors (see below), whose sum is σ = 11769151680. Its totient is φ = 11725999152.

The previous prime is 11747564629. The next prime is 11747564683. The reversal of 11747564641 is 14646574711.

11747564641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11747564641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11747564591 and 11747564600.

It is not an unprimeable number, because it can be changed into a prime (11747594641) 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 7 ways as a sum of consecutive naturals, for example, 1400526 + ... + 1408888.

It is an arithmetic number, because the mean of its divisors is an integer number (1471143960).

Almost surely, 2^11747564641 is an apocalyptic number.

It is an amenable number.

11747564641 is a deficient number, since it is larger than the sum of its proper divisors (21587039).

11747564641 is an equidigital number, since it uses as much as digits as its factorization.

11747564641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10775.

The product of its digits is 564480, while the sum is 46.

The spelling of 11747564641 in words is "eleven billion, seven hundred forty-seven million, five hundred sixty-four thousand, six hundred forty-one".