68772068 has 6 divisors (see below), whose sum is σ = 120351126. Its totient is φ = 34386032.

The previous prime is 68772049. The next prime is 68772101. The reversal of 68772068 is 86027786.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67535524 + 1236544 = 8218^2 + 1112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8596505 + ... + 8596512.

It is an arithmetic number, because the mean of its divisors is an integer number (20058521).

Almost surely, 2^68772068 is an apocalyptic number.

It is an amenable number.

68772068 is a deficient number, since it is larger than the sum of its proper divisors (51579058).

68772068 is a wasteful number, since it uses less digits than its factorization.

68772068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17193021 (or 17193019 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 68772068 is about 8292.8926195870. The cubic root of 68772068 is about 409.7044628096.

The spelling of 68772068 in words is "sixty-eight million, seven hundred seventy-two thousand, sixty-eight".