68068393552 has 40 divisors (see below), whose sum is σ = 133304717952. Its totient is φ = 33667507200.

The previous prime is 68068393529. The next prime is 68068393583. The reversal of 68068393552 is 25539386086.

It is a junction number, because it is equal to n+sod(n) for n = 68068393493 and 68068393502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3732777 + ... + 3750967.

Almost surely, 2^68068393552 is an apocalyptic number.

It is an amenable number.

68068393552 is a deficient number, since it is larger than the sum of its proper divisors (65236324400).

68068393552 is a wasteful number, since it uses less digits than its factorization.

68068393552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20707 (or 20701 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 68068393552 in words is "sixty-eight billion, sixty-eight million, three hundred ninety-three thousand, five hundred fifty-two".