68743006491 has 8 divisors (see below), whose sum is σ = 91661687824. Its totient is φ = 45826498080.

The previous prime is 68743006427. The next prime is 68743006499. The reversal of 68743006491 is 19460034786.

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

It is not a de Polignac number, because 68743006491 - 2⁶ = 68743006427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68743006491.

It is not an unprimeable number, because it can be changed into a prime (68743006499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467920 + ... + 597021.

It is an arithmetic number, because the mean of its divisors is an integer number (11457710978).

Almost surely, 2^68743006491 is an apocalyptic number.

68743006491 is a deficient number, since it is larger than the sum of its proper divisors (22918681333).

68743006491 is a wasteful number, since it uses less digits than its factorization.

68743006491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086461.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 68743006491 in words is "sixty-eight billion, seven hundred forty-three million, six thousand, four hundred ninety-one".