68843503922 has 6 divisors (see below), whose sum is σ = 103265812479. Its totient is φ = 34421566430.

The previous prime is 68843503919. The next prime is 68843503957. The reversal of 68843503922 is 22930534886.

It can be written as a sum of positive squares in only one way, i.e., 34421751961 + 34421751961 = 185531^2 + 185531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185531.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 278297 + ... + 463827.

Almost surely, 2^68843503922 is an apocalyptic number.

68843503922 is a deficient number, since it is larger than the sum of its proper divisors (34422308557).

68843503922 is an frugal number, since it uses more digits than its factorization.

68843503922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371064 (or 185533 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

Multiplying 68843503922 by its sum of digits (50), we get a square (3442175196100 = 1855310²).

The spelling of 68843503922 in words is "sixty-eight billion, eight hundred forty-three million, five hundred three thousand, nine hundred twenty-two".