43087581906 has 16 divisors (see below), whose sum is σ = 86178756384. Its totient is φ = 14361928544.

The previous prime is 43087581883. The next prime is 43087581913. The reversal of 43087581906 is 60918578034.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21241 + ... + 294323.

It is an arithmetic number, because the mean of its divisors is an integer number (5386172274).

Almost surely, 2^43087581906 is an apocalyptic number.

43087581906 is an abundant number, since it is smaller than the sum of its proper divisors (43091174478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43087581906 is a wasteful number, since it uses less digits than its factorization.

43087581906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299385.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 43087581906 in words is "forty-three billion, eighty-seven million, five hundred eighty-one thousand, nine hundred six".