68635903504 has 40 divisors (see below), whose sum is σ = 152006977280. Its totient is φ = 29410069248.

The previous prime is 68635903477. The next prime is 68635903543. The reversal of 68635903504 is 40530953686.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 601492 + ... + 706444.

It is an arithmetic number, because the mean of its divisors is an integer number (3800174432).

Almost surely, 2^68635903504 is an apocalyptic number.

It is an amenable number.

68635903504 is an abundant number, since it is smaller than the sum of its proper divisors (83371073776).

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

68635903504 is a wasteful number, since it uses less digits than its factorization.

68635903504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110807 (or 110801 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 68635903504 in words is "sixty-eight billion, six hundred thirty-five million, nine hundred three thousand, five hundred four".