68691912 has 16 divisors (see below), whose sum is σ = 171729840. Its totient is φ = 22897296.

The previous prime is 68691911. The next prime is 68691913. The reversal of 68691912 is 21919686.

It is an interprime number because it is at equal distance from previous prime (68691911) and next prime (68691913).

It is not an unprimeable number, because it can be changed into a prime (68691911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1431058 + ... + 1431105.

It is an arithmetic number, because the mean of its divisors is an integer number (10733115).

Almost surely, 2^68691912 is an apocalyptic number.

It is an amenable number.

68691912 is an abundant number, since it is smaller than the sum of its proper divisors (103037928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68691912 is a wasteful number, since it uses less digits than its factorization.

68691912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862172 (or 2862168 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 68691912 is about 8288.0583974777. The cubic root of 68691912 is about 409.5452264658.

The spelling of 68691912 in words is "sixty-eight million, six hundred ninety-one thousand, nine hundred twelve".