68297222878 has 16 divisors (see below), whose sum is σ = 102623863680. Its totient is φ = 34089300000.

The previous prime is 68297222813. The next prime is 68297222897. The reversal of 68297222878 is 87822279286.

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, 6498628 + ... + 6509128.

It is an arithmetic number, because the mean of its divisors is an integer number (6413991480).

Almost surely, 2^68297222878 is an apocalyptic number.

68297222878 is a deficient number, since it is larger than the sum of its proper divisors (34326640802).

68297222878 is a wasteful number, since it uses less digits than its factorization.

68297222878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843.

The product of its digits is 21676032, while the sum is 61.

The spelling of 68297222878 in words is "sixty-eight billion, two hundred ninety-seven million, two hundred twenty-two thousand, eight hundred seventy-eight".