68694212412 has 144 divisors (see below), whose sum is σ = 199629061632. Its totient is φ = 19510657920.

The previous prime is 68694212407. The next prime is 68694212453. The reversal of 68694212412 is 21421249686.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44868087 + ... + 44869617.

It is an arithmetic number, because the mean of its divisors is an integer number (1386312928).

Almost surely, 2^68694212412 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 68694212412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99814530816).

68694212412 is an abundant number, since it is smaller than the sum of its proper divisors (130934849220).

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

68694212412 is a wasteful number, since it uses less digits than its factorization.

68694212412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488 (or 2483 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 68694212412 in words is "sixty-eight billion, six hundred ninety-four million, two hundred twelve thousand, four hundred twelve".