43441545431 has 16 divisors (see below), whose sum is σ = 44117306688. Its totient is φ = 42771456000.

The previous prime is 43441545409. The next prime is 43441545437. The reversal of 43441545431 is 13454514434.

It is a cyclic number.

It is not a de Polignac number, because 43441545431 - 2³⁰ = 42367803607 is a prime.

It is a super-2 number, since 2×43441545431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43441545437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13917551 + ... + 13920671.

It is an arithmetic number, because the mean of its divisors is an integer number (2757331668).

Almost surely, 2^43441545431 is an apocalyptic number.

43441545431 is a deficient number, since it is larger than the sum of its proper divisors (675761257).

43441545431 is a wasteful number, since it uses less digits than its factorization.

43441545431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962.

The product of its digits is 230400, while the sum is 38.

The spelling of 43441545431 in words is "forty-three billion, four hundred forty-one million, five hundred forty-five thousand, four hundred thirty-one".