68530787508 has 24 divisors (see below), whose sum is σ = 161553680512. Its totient is φ = 22608094464.

The previous prime is 68530787483. The next prime is 68530787519. The reversal of 68530787508 is 80578703586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29436460 + ... + 29438787.

Almost surely, 2^68530787508 is an apocalyptic number.

It is an amenable number.

68530787508 is an abundant number, since it is smaller than the sum of its proper divisors (93022893004).

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

68530787508 is a wasteful number, since it uses less digits than its factorization.

68530787508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58875351 (or 58875349 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 68530787508 in words is "sixty-eight billion, five hundred thirty million, seven hundred eighty-seven thousand, five hundred eight".