43531980851 has 12 divisors (see below), whose sum is σ = 45279477432. Its totient is φ = 41845025088.

The previous prime is 43531980841. The next prime is 43531980859. The reversal of 43531980851 is 15808913534.

It is not a de Polignac number, because 43531980851 - 2³⁰ = 42458239027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43531980796 and 43531980805.

It is not an unprimeable number, because it can be changed into a prime (43531980859) 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, 77930 + ... + 305183.

It is an arithmetic number, because the mean of its divisors is an integer number (3773289786).

Almost surely, 2^43531980851 is an apocalyptic number.

43531980851 is a deficient number, since it is larger than the sum of its proper divisors (1747496581).

43531980851 is an equidigital number, since it uses as much as digits as its factorization.

43531980851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383270 (or 383233 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 43531980851 in words is "forty-three billion, five hundred thirty-one million, nine hundred eighty thousand, eight hundred fifty-one".