43439020541 has 32 divisors (see below), whose sum is σ = 54561269760. Its totient is φ = 33720515136.

The previous prime is 43439020531. The next prime is 43439020549. The reversal of 43439020541 is 14502093434.

It is a de Polignac number, because none of the positive numbers 2^k-43439020541 is a prime.

It is a super-2 number, since 2×43439020541² (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 (43439020549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7451870 + ... + 7457696.

It is an arithmetic number, because the mean of its divisors is an integer number (1705039680).

Almost surely, 2^43439020541 is an apocalyptic number.

It is an amenable number.

43439020541 is a deficient number, since it is larger than the sum of its proper divisors (11122249219).

43439020541 is a wasteful number, since it uses less digits than its factorization.

43439020541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 43439020541 in words is "forty-three billion, four hundred thirty-nine million, twenty thousand, five hundred forty-one".