68788311654 has 16 divisors (see below), whose sum is σ = 140776080192. Its totient is φ = 22396194408.

The previous prime is 68788311649. The next prime is 68788311661. The reversal of 68788311654 is 45611388786.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68788311594 and 68788311603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133310424 + ... + 133310939.

It is an arithmetic number, because the mean of its divisors is an integer number (8798505012).

Almost surely, 2^68788311654 is an apocalyptic number.

68788311654 is an abundant number, since it is smaller than the sum of its proper divisors (71987768538).

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

68788311654 is a wasteful number, since it uses less digits than its factorization.

68788311654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266621411.

The product of its digits is 7741440, while the sum is 57.

The spelling of 68788311654 in words is "sixty-eight billion, seven hundred eighty-eight million, three hundred eleven thousand, six hundred fifty-four".