43091878911 has 16 divisors (see below), whose sum is σ = 60444489600. Its totient is φ = 27267174368.

The previous prime is 43091878877. The next prime is 43091878927. The reversal of 43091878911 is 11987819034.

It is a happy number.

It is not a de Polignac number, because 43091878911 - 2⁹ = 43091878399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43091878981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4192401 + ... + 4202666.

It is an arithmetic number, because the mean of its divisors is an integer number (3777780600).

Almost surely, 2^43091878911 is an apocalyptic number.

43091878911 is a deficient number, since it is larger than the sum of its proper divisors (17352610689).

43091878911 is a wasteful number, since it uses less digits than its factorization.

43091878911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8395158.

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 43091878911 in words is "forty-three billion, ninety-one million, eight hundred seventy-eight thousand, nine hundred eleven".