68112119540 has 48 divisors (see below), whose sum is σ = 146777133888. Its totient is φ = 26535742464.

The previous prime is 68112119527. The next prime is 68112119549. The reversal of 68112119540 is 4591121186.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68112119494 and 68112119503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68112119549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191399 + ... + 415761.

It is an arithmetic number, because the mean of its divisors is an integer number (3057856956).

Almost surely, 2^68112119540 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 68112119540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73388566944).

68112119540 is an abundant number, since it is smaller than the sum of its proper divisors (78665014348).

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

68112119540 is a wasteful number, since it uses less digits than its factorization.

68112119540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224768 (or 224766 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 68112119540 in words is "sixty-eight billion, one hundred twelve million, one hundred nineteen thousand, five hundred forty".