878444890427 has 16 divisors (see below), whose sum is σ = 963296259072. Its totient is φ = 796193556480.

The previous prime is 878444890403. The next prime is 878444890441. The reversal of 878444890427 is 724098444878.

878444890427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 878444890427 - 2¹⁶ = 878444824891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878444890487) 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, 2582474 + ... + 2902767.

It is an arithmetic number, because the mean of its divisors is an integer number (60206016192).

Almost surely, 2^878444890427 is an apocalyptic number.

878444890427 is a deficient number, since it is larger than the sum of its proper divisors (84851368645).

878444890427 is a wasteful number, since it uses less digits than its factorization.

878444890427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485478.

The product of its (nonzero) digits is 115605504, while the sum is 65.

The spelling of 878444890427 in words is "eight hundred seventy-eight billion, four hundred forty-four million, eight hundred ninety thousand, four hundred twenty-seven".