43538057472 has 576 divisors, whose sum is σ = 148757414400. Its totient is φ = 10999037952.

The previous prime is 43538057449. The next prime is 43538057543. The reversal of 43538057472 is 27475083534.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 292201654 + ... + 292201802.

It is an arithmetic number, because the mean of its divisors is an integer number (258259400).

Almost surely, 2^43538057472 is an apocalyptic number.

43538057472 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43538057472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74378707200).

43538057472 is an abundant number, since it is smaller than the sum of its proper divisors (105219356928).

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

43538057472 is a wasteful number, since it uses less digits than its factorization.

43538057472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 43538057472 in words is "forty-three billion, five hundred thirty-eight million, fifty-seven thousand, four hundred seventy-two".