43549332481 has 12 divisors (see below), whose sum is σ = 44660160000. Its totient is φ = 42465510560.

The previous prime is 43549332473. The next prime is 43549332503. The reversal of 43549332481 is 18423394534.

It is not a de Polignac number, because 43549332481 - 2³ = 43549332473 is a prime.

It is a super-2 number, since 2×43549332481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43549332781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4027320 + ... + 4038118.

It is an arithmetic number, because the mean of its divisors is an integer number (3721680000).

Almost surely, 2^43549332481 is an apocalyptic number.

43549332481 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

43549332481 is a deficient number, since it is larger than the sum of its proper divisors (1110827519).

43549332481 is a wasteful number, since it uses less digits than its factorization.

43549332481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280 (or 13239 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The spelling of 43549332481 in words is "forty-three billion, five hundred forty-nine million, three hundred thirty-two thousand, four hundred eighty-one".