43489820878 has 16 divisors (see below), whose sum is σ = 74882415744. Its totient is φ = 18556385400.

The previous prime is 43489820849. The next prime is 43489820887. The reversal of 43489820878 is 87802898434.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6839148 + ... + 6845503.

It is an arithmetic number, because the mean of its divisors is an integer number (4680150984).

Almost surely, 2^43489820878 is an apocalyptic number.

43489820878 is a deficient number, since it is larger than the sum of its proper divisors (31392594866).

43489820878 is a wasteful number, since it uses less digits than its factorization.

43489820878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13684887.

The product of its (nonzero) digits is 24772608, while the sum is 61.

The spelling of 43489820878 in words is "forty-three billion, four hundred eighty-nine million, eight hundred twenty thousand, eight hundred seventy-eight".