43727071725 has 24 divisors (see below), whose sum is σ = 80328251520. Its totient is φ = 23321104560.

The previous prime is 43727071721. The next prime is 43727071741. The reversal of 43727071725 is 52717072734.

It is not a de Polignac number, because 43727071725 - 2² = 43727071721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43727071721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32389749 + ... + 32391098.

It is an arithmetic number, because the mean of its divisors is an integer number (3347010480).

Almost surely, 2^43727071725 is an apocalyptic number.

43727071725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43727071725 is a deficient number, since it is larger than the sum of its proper divisors (36601179795).

43727071725 is a wasteful number, since it uses less digits than its factorization.

43727071725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64780866 (or 64780855 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The spelling of 43727071725 in words is "forty-three billion, seven hundred twenty-seven million, seventy-one thousand, seven hundred twenty-five".