7778068244321 has 8 divisors (see below), whose sum is σ = 8188180954080. Its totient is φ = 7368029604288.

The previous prime is 7778068244281. The next prime is 7778068244327. The reversal of 7778068244321 is 1234428608777.

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

It is a cyclic number.

It is not a de Polignac number, because 7778068244321 - 2¹⁸ = 7778067982177 is a prime.

It is a super-2 number, since 2×7778068244321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7778068244327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18301811 + ... + 18721976.

It is an arithmetic number, because the mean of its divisors is an integer number (1023522619260).

Almost surely, 2^{7778068244321} is an apocalyptic number.

It is an amenable number.

7778068244321 is a deficient number, since it is larger than the sum of its proper divisors (410112709759).

7778068244321 is a wasteful number, since it uses less digits than its factorization.

7778068244321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37034863.

The product of its (nonzero) digits is 25288704, while the sum is 59.

The spelling of 7778068244321 in words is "seven trillion, seven hundred seventy-eight billion, sixty-eight million, two hundred forty-four thousand, three hundred twenty-one".