11443471544 has 32 divisors (see below), whose sum is σ = 22597488000. Its totient is φ = 5417786592.

The previous prime is 11443471541. The next prime is 11443471547. The reversal of 11443471544 is 44517434411.

It is an interprime number because it is at equal distance from previous prime (11443471541) and next prime (11443471547).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 11443471498 and 11443471507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11443471541) 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, 291467 + ... + 328389.

It is an arithmetic number, because the mean of its divisors is an integer number (706171500).

Almost surely, 2^11443471544 is an apocalyptic number.

It is an amenable number.

11443471544 is a deficient number, since it is larger than the sum of its proper divisors (11154016456).

11443471544 is a wasteful number, since it uses less digits than its factorization.

11443471544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38987 (or 38983 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The spelling of 11443471544 in words is "eleven billion, four hundred forty-three million, four hundred seventy-one thousand, five hundred forty-four".