43913443087 has 4 divisors (see below), whose sum is σ = 46496586816. Its totient is φ = 41330299360.

The previous prime is 43913443061. The next prime is 43913443141. The reversal of 43913443087 is 78034431934.

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

It is not a de Polignac number, because 43913443087 - 2³¹ = 41765959439 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 (43913443487) 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, 1291571839 + ... + 1291571872.

It is an arithmetic number, because the mean of its divisors is an integer number (11624146704).

Almost surely, 2^43913443087 is an apocalyptic number.

43913443087 is a deficient number, since it is larger than the sum of its proper divisors (2583143729).

43913443087 is a wasteful number, since it uses less digits than its factorization.

43913443087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583143728.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 43913443087 in words is "forty-three billion, nine hundred thirteen million, four hundred forty-three thousand, eighty-seven".