68880615122 has 18 divisors (see below), whose sum is σ = 113574357687. Its totient is φ = 31307514700.

The previous prime is 68880615109. The next prime is 68880615157. The reversal of 68880615122 is 22151608886.

It can be written as a sum of positive squares in only one way, i.e., 34440307561 + 34440307561 = 185581^2 + 185581^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185581.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4074347 + ... + 4091217.

Almost surely, 2^68880615122 is an apocalyptic number.

68880615122 is a deficient number, since it is larger than the sum of its proper divisors (44693742565).

68880615122 is an frugal number, since it uses more digits than its factorization.

68880615122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33766 (or 16884 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 68880615122 in words is "sixty-eight billion, eight hundred eighty million, six hundred fifteen thousand, one hundred twenty-two".