43491012158 has 8 divisors (see below), whose sum is σ = 71167110840. Its totient is φ = 19768641880.

The previous prime is 43491012121. The next prime is 43491012167. The reversal of 43491012158 is 85121019434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988432073 + ... + 988432116.

It is an arithmetic number, because the mean of its divisors is an integer number (8895888855).

Almost surely, 2^43491012158 is an apocalyptic number.

43491012158 is a deficient number, since it is larger than the sum of its proper divisors (27676098682).

43491012158 is a wasteful number, since it uses less digits than its factorization.

43491012158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976864202.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 43491012158 in words is "forty-three billion, four hundred ninety-one million, twelve thousand, one hundred fifty-eight".