68756940635 has 8 divisors (see below), whose sum is σ = 82513453056. Its totient is φ = 55002136320.

The previous prime is 68756940619. The next prime is 68756940671. The reversal of 68756940635 is 53604965786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68756940635 - 2⁴ = 68756940619 is a prime.

It is a Duffinian 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, 336731 + ... + 500900.

It is an arithmetic number, because the mean of its divisors is an integer number (10314181632).

Almost surely, 2^68756940635 is an apocalyptic number.

68756940635 is a deficient number, since it is larger than the sum of its proper divisors (13756512421).

68756940635 is a wasteful number, since it uses less digits than its factorization.

68756940635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854053.

The product of its (nonzero) digits is 32659200, while the sum is 59.

The spelling of 68756940635 in words is "sixty-eight billion, seven hundred fifty-six million, nine hundred forty thousand, six hundred thirty-five".