11644252671 has 8 divisors (see below), whose sum is σ = 15529028400. Its totient is φ = 7761156032.

The previous prime is 11644252661. The next prime is 11644252709. The reversal of 11644252671 is 17625244611.

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

It is a cyclic number.

It is not a de Polignac number, because 11644252671 - 2¹⁴ = 11644236287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11644252621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403500 + ... + 431393.

It is an arithmetic number, because the mean of its divisors is an integer number (1941128550).

Almost surely, 2^11644252671 is an apocalyptic number.

11644252671 is a deficient number, since it is larger than the sum of its proper divisors (3884775729).

11644252671 is an equidigital number, since it uses as much as digits as its factorization.

11644252671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839545.

The product of its digits is 80640, while the sum is 39.

The spelling of 11644252671 in words is "eleven billion, six hundred forty-four million, two hundred fifty-two thousand, six hundred seventy-one".