68868742080 has 56 divisors (see below), whose sum is σ = 218658259152. Its totient is φ = 18364997632.

The previous prime is 68868742073. The next prime is 68868742081. The reversal of 68868742080 is 8024786886.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68868742080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68868742081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35868177 + ... + 35870096.

Almost surely, 2^68868742080 is an apocalyptic number.

68868742080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68868742080 is an abundant number, since it is smaller than the sum of its proper divisors (149789517072).

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

68868742080 is a wasteful number, since it uses less digits than its factorization.

68868742080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71738293 (or 71738283 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 57.

The spelling of 68868742080 in words is "sixty-eight billion, eight hundred sixty-eight million, seven hundred forty-two thousand, eighty".