68061849908 has 24 divisors (see below), whose sum is σ = 128516661000. Its totient is φ = 31352855040.

The previous prime is 68061849883. The next prime is 68061849923. The reversal of 68061849908 is 80994816086.

It can be written as a sum of positive squares in 4 ways, for example, as 2790797584 + 65271052324 = 52828^2 + 255482^2 .

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, 1229033 + ... + 1283216.

It is an arithmetic number, because the mean of its divisors is an integer number (5354860875).

Almost surely, 2^68061849908 is an apocalyptic number.

It is an amenable number.

68061849908 is a deficient number, since it is larger than the sum of its proper divisors (60454811092).

68061849908 is a wasteful number, since it uses less digits than its factorization.

68061849908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512787 (or 2512785 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 68061849908 in words is "sixty-eight billion, sixty-one million, eight hundred forty-nine thousand, nine hundred eight".