7217055553389 has 16 divisors (see below), whose sum is σ = 10781252523840. Its totient is φ = 4255757573760.

The previous prime is 7217055553361. The next prime is 7217055553391. The reversal of 7217055553389 is 9833555507127.

It is not a de Polignac number, because 7217055553389 - 2²³ = 7217047164781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7217055553189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2955385984 + ... + 2955388425.

It is an arithmetic number, because the mean of its divisors is an integer number (673828282740).

Almost surely, 2^{7217055553389} is an apocalyptic number.

It is an amenable number.

7217055553389 is a deficient number, since it is larger than the sum of its proper divisors (3564196970451).

7217055553389 is a wasteful number, since it uses less digits than its factorization.

7217055553389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910774460.

The product of its (nonzero) digits is 39690000, while the sum is 60.

The spelling of 7217055553389 in words is "seven trillion, two hundred seventeen billion, fifty-five million, five hundred fifty-three thousand, three hundred eighty-nine".