68643791950 has 24 divisors (see below), whose sum is σ = 128235017880. Its totient is φ = 27337610400.

The previous prime is 68643791899. The next prime is 68643792017. The reversal of 68643791950 is 5919734686.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2986096 + ... + 3008995.

It is an arithmetic number, because the mean of its divisors is an integer number (5343125745).

Almost surely, 2^68643791950 is an apocalyptic number.

68643791950 is a deficient number, since it is larger than the sum of its proper divisors (59591225930).

68643791950 is a wasteful number, since it uses less digits than its factorization.

68643791950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5995332 (or 5995327 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 68643791950 in words is "sixty-eight billion, six hundred forty-three million, seven hundred ninety-one thousand, nine hundred fifty".