68669669376 has 720 divisors, whose sum is σ = 261070009200. Its totient is φ = 17836277760.

The previous prime is 68669669339. The next prime is 68669669399. The reversal of 68669669376 is 67396696686.

It is a Harshad number since it is a multiple of its sum of digits (72).

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 35 ways as a sum of consecutive naturals, for example, 6242697211 + ... + 6242697221.

It is an arithmetic number, because the mean of its divisors is an integer number (362597235).

Almost surely, 2^68669669376 is an apocalyptic number.

68669669376 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 68669669376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130535004600).

68669669376 is an abundant number, since it is smaller than the sum of its proper divisors (192400339824).

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

68669669376 is an frugal number, since it uses more digits than its factorization.

68669669376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 23 counting only the distinct ones).

The product of its digits is 634894848, while the sum is 72.

The spelling of 68669669376 in words is "sixty-eight billion, six hundred sixty-nine million, six hundred sixty-nine thousand, three hundred seventy-six".