677534716878 has 16 divisors (see below), whose sum is σ = 1383900698880. Its totient is φ = 221039694776.

The previous prime is 677534716867. The next prime is 677534716883. The reversal of 677534716878 is 878617435776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201302408 + ... + 1201302971.

It is an arithmetic number, because the mean of its divisors is an integer number (86493793680).

Almost surely, 2^677534716878 is an apocalyptic number.

677534716878 is an abundant number, since it is smaller than the sum of its proper divisors (706365982002).

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

677534716878 is a wasteful number, since it uses less digits than its factorization.

677534716878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402605431.

The product of its digits is 331914240, while the sum is 69.

The spelling of 677534716878 in words is "six hundred seventy-seven billion, five hundred thirty-four million, seven hundred sixteen thousand, eight hundred seventy-eight".