68755670221392 has 960 divisors, whose sum is σ = 258289828392960. Its totient is φ = 17180829388800.

The previous prime is 68755670221391. The next prime is 68755670221423. The reversal of 68755670221392 is 29312207655786.

68755670221392 is a `hidden beast` number, since 6 + 8 + 7 + 556 + 70 + 2 + 2 + 1 + 3 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68755670221391) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2439600933 + ... + 2439629115.

It is an arithmetic number, because the mean of its divisors is an integer number (269051904576).

Almost surely, 2^{68755670221392} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68755670221392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129144914196480).

68755670221392 is an abundant number, since it is smaller than the sum of its proper divisors (189534158171568).

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

68755670221392 is a wasteful number, since it uses less digits than its factorization.

68755670221392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28534 (or 28516 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 68755670221392 in words is "sixty-eight trillion, seven hundred fifty-five billion, six hundred seventy million, two hundred twenty-one thousand, three hundred ninety-two".