7745714443221 has 16 divisors (see below), whose sum is σ = 10346884142400. Its totient is φ = 5154179143808.

The previous prime is 7745714443211. The next prime is 7745714443231. The reversal of 7745714443221 is 1223444175477.

It is an interprime number because it is at equal distance from previous prime (7745714443211) and next prime (7745714443231).

It is a cyclic number.

It is not a de Polignac number, because 7745714443221 - 2⁶ = 7745714443157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7745714443211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15920515 + ... + 16399823.

It is an arithmetic number, because the mean of its divisors is an integer number (646680258900).

Almost surely, 2^{7745714443221} is an apocalyptic number.

It is an amenable number.

7745714443221 is a deficient number, since it is larger than the sum of its proper divisors (2601169699179).

7745714443221 is a wasteful number, since it uses less digits than its factorization.

7745714443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489348.

The product of its digits is 5268480, while the sum is 51.

The spelling of 7745714443221 in words is "seven trillion, seven hundred forty-five billion, seven hundred fourteen million, four hundred forty-three thousand, two hundred twenty-one".