68775013240 has 16 divisors (see below), whose sum is σ = 154743779880. Its totient is φ = 27510005280.

The previous prime is 68775013183. The next prime is 68775013253. The reversal of 68775013240 is 4231057786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859687626 + ... + 859687705.

Almost surely, 2^68775013240 is an apocalyptic number.

It is an amenable number.

68775013240 is an abundant number, since it is smaller than the sum of its proper divisors (85968766640).

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

68775013240 is a wasteful number, since it uses less digits than its factorization.

68775013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719375342 (or 1719375338 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 68775013240 in words is "sixty-eight billion, seven hundred seventy-five million, thirteen thousand, two hundred forty".