68392247616 has 560 divisors, whose sum is σ = 260962639872. Its totient is φ = 17188070400.

The previous prime is 68392247591. The next prime is 68392247621. The reversal of 68392247616 is 61674229386.

68392247616 is a `hidden beast` number, since 6 + 8 + 392 + 247 + 6 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12371445 + ... + 12376971.

Almost surely, 2^68392247616 is an apocalyptic number.

68392247616 is a gapful number since it is divisible by the number (66) 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 68392247616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130481319936).

68392247616 is an abundant number, since it is smaller than the sum of its proper divisors (192570392256).

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

68392247616 is a wasteful number, since it uses less digits than its factorization.

68392247616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5600 (or 5581 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 68392247616 in words is "sixty-eight billion, three hundred ninety-two million, two hundred forty-seven thousand, six hundred sixteen".