68880861 has 40 divisors (see below), whose sum is σ = 120504384. Its totient is φ = 38387520.

The previous prime is 68880859. The next prime is 68880869. The reversal of 68880861 is 16808886.

It is a happy number.

It is not a de Polignac number, because 68880861 - 2¹ = 68880859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68880869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21766 + ... + 24728.

Almost surely, 2^68880861 is an apocalyptic number.

It is an amenable number.

68880861 is a deficient number, since it is larger than the sum of its proper divisors (51623523).

68880861 is a wasteful number, since it uses less digits than its factorization.

68880861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023 (or 3014 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 68880861 is about 8299.4494395713. The cubic root of 68880861 is about 409.9203910475.

The spelling of 68880861 in words is "sixty-eight million, eight hundred eighty thousand, eight hundred sixty-one".