68493388392 has 384 divisors, whose sum is σ = 226437120000. Its totient is φ = 18425848320.

The previous prime is 68493388339. The next prime is 68493388441. The reversal of 68493388392 is 29388339486.

68493388392 is a `hidden beast` number, since 6 + 84 + 93 + 3 + 88 + 392 = 666.

68493388392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28549609 + ... + 28552007.

It is an arithmetic number, because the mean of its divisors is an integer number (589680000).

Almost surely, 2^68493388392 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 68493388392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113218560000).

68493388392 is an abundant number, since it is smaller than the sum of its proper divisors (157943731608).

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

68493388392 is a wasteful number, since it uses less digits than its factorization.

68493388392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541 (or 2534 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 68493388392 in words is "sixty-eight billion, four hundred ninety-three million, three hundred eighty-eight thousand, three hundred ninety-two".