43981419008 has 20 divisors (see below), whose sum is σ = 87876937830. Its totient is φ = 21990709248.

The previous prime is 43981418959. The next prime is 43981419023. The reversal of 43981419008 is 80091418934.

It can be written as a sum of positive squares in only one way, i.e., 43885222144 + 96196864 = 209488^2 + 9808^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 42950093 + ... + 42951116.

Almost surely, 2^43981419008 is an apocalyptic number.

It is an amenable number.

43981419008 is a deficient number, since it is larger than the sum of its proper divisors (43895518822).

43981419008 is an frugal number, since it uses more digits than its factorization.

43981419008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85901227 (or 85901211 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 43981419008 in words is "forty-three billion, nine hundred eighty-one million, four hundred nineteen thousand, eight".