68183654401 has 4 divisors (see below), whose sum is σ = 69846670404. Its totient is φ = 66520638400.

The previous prime is 68183654389. The next prime is 68183654489. The reversal of 68183654401 is 10445638186.

It is a Cunningham number, because it is equal to 261120²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3285582400 + 64898072001 = 57320^2 + 254751^2 .

It is a cyclic number.

It is not a de Polignac number, because 68183654401 - 2¹⁵ = 68183621633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68183654701) 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, 831507940 + ... + 831508021.

It is an arithmetic number, because the mean of its divisors is an integer number (17461667601).

It is a Proth number, since it is equal to 65025 ⋅ 2²⁰ + 1 and 65025 < 2²⁰.

Almost surely, 2^68183654401 is an apocalyptic number.

It is an amenable number.

68183654401 is a deficient number, since it is larger than the sum of its proper divisors (1663016003).

68183654401 is a wasteful number, since it uses less digits than its factorization.

68183654401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663016002.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 68183654401 in words is "sixty-eight billion, one hundred eighty-three million, six hundred fifty-four thousand, four hundred one".