68999516 has 12 divisors (see below), whose sum is σ = 121560600. Its totient is φ = 34267920.

The previous prime is 68999509. The next prime is 68999519. The reversal of 68999516 is 61599986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68999519) 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 3 ways as a sum of consecutive naturals, for example, 57290 + ... + 58481.

It is an arithmetic number, because the mean of its divisors is an integer number (10130050).

Almost surely, 2^68999516 is an apocalyptic number.

It is an amenable number.

68999516 is a deficient number, since it is larger than the sum of its proper divisors (52561084).

68999516 is a wasteful number, since it uses less digits than its factorization.

68999516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115924 (or 115922 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 53.

The square root of 68999516 is about 8306.5947294905. The cubic root of 68999516 is about 410.1556339545.

The spelling of 68999516 in words is "sixty-eight million, nine hundred ninety-nine thousand, five hundred sixteen".