43724681952 has 72 divisors (see below), whose sum is σ = 133516453896. Its totient is φ = 12492764928.

The previous prime is 43724681911. The next prime is 43724681953. The reversal of 43724681952 is 25918642734.

It is a junction number, because it is equal to n+sod(n) for n = 43724681895 and 43724681904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43724681953) 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, 4642903 + ... + 4652310.

It is an arithmetic number, because the mean of its divisors is an integer number (1854395193).

Almost surely, 2^43724681952 is an apocalyptic number.

43724681952 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43724681952 is an abundant number, since it is smaller than the sum of its proper divisors (89791771944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43724681952 is a wasteful number, since it uses less digits than its factorization.

43724681952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9295240 (or 9295225 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 43724681952 in words is "forty-three billion, seven hundred twenty-four million, six hundred eighty-one thousand, nine hundred fifty-two".