68303685554121 has 4 divisors (see below), whose sum is σ = 91071580738832. Its totient is φ = 45535790369412.

The previous prime is 68303685554063. The next prime is 68303685554123. The reversal of 68303685554121 is 12145558630386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68303685554121 - 2¹⁰ = 68303685553097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68303685554123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11383947592351 + ... + 11383947592356.

It is an arithmetic number, because the mean of its divisors is an integer number (22767895184708).

Almost surely, 2^{68303685554121} is an apocalyptic number.

It is an amenable number.

68303685554121 is a deficient number, since it is larger than the sum of its proper divisors (22767895184711).

68303685554121 is a wasteful number, since it uses less digits than its factorization.

68303685554121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22767895184710.

The product of its (nonzero) digits is 20736000, while the sum is 57.

The spelling of 68303685554121 in words is "sixty-eight trillion, three hundred three billion, six hundred eighty-five million, five hundred fifty-four thousand, one hundred twenty-one".