43869222549 has 12 divisors (see below), whose sum is σ = 63645806016. Its totient is φ = 29117309352.

The previous prime is 43869222547. The next prime is 43869222559. The reversal of 43869222549 is 94522296834.

43869222549 is a `hidden beast` number, since 4 + 3 + 8 + 6 + 92 + 2 + 2 + 549 = 666.

It is not a de Polignac number, because 43869222549 - 2¹ = 43869222547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43869222495 and 43869222504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43869222547) 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, 10734429 + ... + 10738514.

It is an arithmetic number, because the mean of its divisors is an integer number (5303817168).

Almost surely, 2^43869222549 is an apocalyptic number.

It is an amenable number.

43869222549 is a deficient number, since it is larger than the sum of its proper divisors (19776583467).

43869222549 is a wasteful number, since it uses less digits than its factorization.

43869222549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21473176 (or 21473173 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 43869222549 in words is "forty-three billion, eight hundred sixty-nine million, two hundred twenty-two thousand, five hundred forty-nine".