878246767642878 has 24 divisors (see below), whose sum is σ = 1926954933228000. Its totient is φ = 289043239983264.

The previous prime is 878246767642877. The next prime is 878246767642903.

878246767642878 is a `hidden beast` number, since 8 + 7 + 8 + 2 + 46 + 7 + 6 + 76 + 428 + 78 = 666.

878246767642878 is nontrivially palindromic in base 10.

878246767642878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878246767642877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308806878903 + ... + 308806881746.

It is an arithmetic number, because the mean of its divisors is an integer number (80289788884500).

Almost surely, 2^{878246767642878} is an apocalyptic number.

878246767642878 is an abundant number, since it is smaller than the sum of its proper divisors (1048708165585122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878246767642878 is a wasteful number, since it uses less digits than its factorization.

878246767642878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617613760736 (or 617613760733 counting only the distinct ones).

The product of its digits is 135952072704, while the sum is 90.

The spelling of 878246767642878 in words is "eight hundred seventy-eight trillion, two hundred forty-six billion, seven hundred sixty-seven million, six hundred forty-two thousand, eight hundred seventy-eight".