68873812393 has 8 divisors (see below), whose sum is σ = 74896165512. Its totient is φ = 63070454016.

The previous prime is 68873812387. The next prime is 68873812411. The reversal of 68873812393 is 39321837886.

It can be written as a sum of positive squares in 4 ways, for example, as 22178059929 + 46695752464 = 148923^2 + 216092^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68873812393 - 2¹³ = 68873804201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68873812093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54748030 + ... + 54749287.

It is an arithmetic number, because the mean of its divisors is an integer number (9362020689).

Almost surely, 2^68873812393 is an apocalyptic number.

It is an amenable number.

68873812393 is a deficient number, since it is larger than the sum of its proper divisors (6022353119).

68873812393 is a wasteful number, since it uses less digits than its factorization.

68873812393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109497371.

The product of its digits is 10450944, while the sum is 58.

The spelling of 68873812393 in words is "sixty-eight billion, eight hundred seventy-three million, eight hundred twelve thousand, three hundred ninety-three".