68380429408516 has 81 divisors (see below), whose sum is σ = 122276709851751. Its totient is φ = 33460081628688.

The previous prime is 68380429408493. The next prime is 68380429408519. The reversal of 68380429408516 is 61580492408386.

The square root of 68380429408516 is 8269246.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×68380429408516³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68380429408519) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 260001632601 + ... + 260001632863.

Almost surely, 2^{68380429408516} is an apocalyptic number.

68380429408516 is the 8269246-th square number.

It is an amenable number.

68380429408516 is a deficient number, since it is larger than the sum of its proper divisors (53896280443235).

68380429408516 is an frugal number, since it uses more digits than its factorization.

68380429408516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 64.

The spelling of 68380429408516 in words is "sixty-eight trillion, three hundred eighty billion, four hundred twenty-nine million, four hundred eight thousand, five hundred sixteen".