68411450136 has 64 divisors (see below), whose sum is σ = 174261859200. Its totient is φ = 22374206208.

The previous prime is 68411450087. The next prime is 68411450183. The reversal of 68411450136 is 63105411486.

It is a junction number, because it is equal to n+sod(n) for n = 68411450094 and 68411450103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694380 + ... + 786756.

It is an arithmetic number, because the mean of its divisors is an integer number (2722841550).

Almost surely, 2^68411450136 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 68411450136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87130929600).

68411450136 is an abundant number, since it is smaller than the sum of its proper divisors (105850409064).

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

68411450136 is a wasteful number, since it uses less digits than its factorization.

68411450136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92968 (or 92964 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 68411450136 in words is "sixty-eight billion, four hundred eleven million, four hundred fifty thousand, one hundred thirty-six".