68825400878 has 32 divisors (see below), whose sum is σ = 111502863360. Its totient is φ = 31673318400.

The previous prime is 68825400869. The next prime is 68825400929. The reversal of 68825400878 is 87800452886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16666718 + ... + 16670846.

It is an arithmetic number, because the mean of its divisors is an integer number (3484464480).

Almost surely, 2^68825400878 is an apocalyptic number.

68825400878 is a deficient number, since it is larger than the sum of its proper divisors (42677462482).

68825400878 is a wasteful number, since it uses less digits than its factorization.

68825400878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852.

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 68825400878 in words is "sixty-eight billion, eight hundred twenty-five million, four hundred thousand, eight hundred seventy-eight".