68810912 has 12 divisors (see below), whose sum is σ = 135471546. Its totient is φ = 34405440.

The previous prime is 68810909. The next prime is 68810921. The reversal of 68810912 is 21901886.

It can be written as a sum of positive squares in only one way, i.e., 50183056 + 18627856 = 7084^2 + 4316^2 .

It is a super-2 number, since 2×68810912² = 9469883220543488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075139 + ... + 1075202.

Almost surely, 2^68810912 is an apocalyptic number.

It is an amenable number.

68810912 is a deficient number, since it is larger than the sum of its proper divisors (66660634).

68810912 is a wasteful number, since it uses less digits than its factorization.

68810912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150351 (or 2150343 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 68810912 is about 8295.2342944609. The cubic root of 68810912 is about 409.7815850350.

The spelling of 68810912 in words is "sixty-eight million, eight hundred ten thousand, nine hundred twelve".