68125923911808 has 1536 divisors, whose sum is σ = 248373186969600. Its totient is φ = 18299602944000.

The previous prime is 68125923911753. The next prime is 68125923911879. The reversal of 68125923911808 is 80811932952186.

68125923911808 is a `hidden beast` number, since 6 + 8 + 1 + 2 + 592 + 39 + 1 + 1 + 8 + 0 + 8 = 666.

It is a super-2 number, since 2×68125923911808² (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 66077520253 + ... + 66077521283.

It is an arithmetic number, because the mean of its divisors is an integer number (161701293600).

Almost surely, 2^{68125923911808} 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 68125923911808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124186593484800).

68125923911808 is an abundant number, since it is smaller than the sum of its proper divisors (180247263057792).

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

68125923911808 is a wasteful number, since it uses less digits than its factorization.

68125923911808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 68125923911808 in words is "sixty-eight trillion, one hundred twenty-five billion, nine hundred twenty-three million, nine hundred eleven thousand, eight hundred eight".