43478326087 has 4 divisors (see below), whose sum is σ = 49689515536. Its totient is φ = 37267136640.

The previous prime is 43478326051. The next prime is 43478326091. The reversal of 43478326087 is 78062387434.

43478326087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43478326087 - 2³¹ = 41330842439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43478326687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3105594714 + ... + 3105594727.

It is an arithmetic number, because the mean of its divisors is an integer number (12422378884).

Almost surely, 2^43478326087 is an apocalyptic number.

43478326087 is a deficient number, since it is larger than the sum of its proper divisors (6211189449).

43478326087 is an equidigital number, since it uses as much as digits as its factorization.

43478326087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211189448.

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 43478326087 in words is "forty-three billion, four hundred seventy-eight million, three hundred twenty-six thousand, eighty-seven".