626878878626 has 32 divisors (see below), whose sum is σ = 1262525298048. Its totient is φ = 225450944640.

The previous prime is 626878878617. The next prime is 626878878649.

626878878626 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156561155 + ... + 156565158.

It is an arithmetic number, because the mean of its divisors is an integer number (39453915564).

Almost surely, 2^626878878626 is an apocalyptic number.

626878878626 is an abundant number, since it is smaller than the sum of its proper divisors (635646419422).

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

626878878626 is a wasteful number, since it uses less digits than its factorization.

626878878626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313126346.

The product of its digits is 1040449536, while the sum is 74.

The spelling of 626878878626 in words is "six hundred twenty-six billion, eight hundred seventy-eight million, eight hundred seventy-eight thousand, six hundred twenty-six".