43550123872 has 12 divisors (see below), whose sum is σ = 85739306436. Its totient is φ = 21775061920.

The previous prime is 43550123857. The next prime is 43550123873. The reversal of 43550123872 is 27832105534.

It is a super-2 number, since 2×43550123872² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43550123873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680470654 + ... + 680470717.

It is an arithmetic number, because the mean of its divisors is an integer number (7144942203).

Almost surely, 2^43550123872 is an apocalyptic number.

It is an amenable number.

43550123872 is a deficient number, since it is larger than the sum of its proper divisors (42189182564).

43550123872 is a wasteful number, since it uses less digits than its factorization.

43550123872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360941381 (or 1360941373 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 43550123872 in words is "forty-three billion, five hundred fifty million, one hundred twenty-three thousand, eight hundred seventy-two".