68625055945440 has 384 divisors, whose sum is σ = 254674663488000. Its totient is φ = 17210307022848.

The previous prime is 68625055945427. The next prime is 68625055945451. The reversal of 68625055945440 is 4454955052686.

68625055945440 is a `hidden beast` number, since 6 + 8 + 6 + 2 + 50 + 55 + 94 + 5 + 440 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8193591 + ... + 14296329.

It is an arithmetic number, because the mean of its divisors is an integer number (663215269500).

Almost surely, 2^{68625055945440} is an apocalyptic number.

68625055945440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68625055945440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127337331744000).

68625055945440 is an abundant number, since it is smaller than the sum of its proper divisors (186049607542560).

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

68625055945440 is a wasteful number, since it uses less digits than its factorization.

68625055945440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102919 (or 6102905 counting only the distinct ones).

The product of its (nonzero) digits is 207360000, while the sum is 63.

The spelling of 68625055945440 in words is "sixty-eight trillion, six hundred twenty-five billion, fifty-five million, nine hundred forty-five thousand, four hundred forty".