68017545526 has 16 divisors (see below), whose sum is σ = 118981130400. Its totient is φ = 29150376360.

The previous prime is 68017545481. The next prime is 68017545551. The reversal of 68017545526 is 62554571086.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 68017545526.

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, 49574785 + ... + 49576156.

It is an arithmetic number, because the mean of its divisors is an integer number (7436320650).

Almost surely, 2^68017545526 is an apocalyptic number.

68017545526 is a deficient number, since it is larger than the sum of its proper divisors (50963584874).

68017545526 is an equidigital number, since it uses as much as digits as its factorization.

68017545526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99150964 (or 99150950 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 68017545526 in words is "sixty-eight billion, seventeen million, five hundred forty-five thousand, five hundred twenty-six".