7147721522253 has 8 divisors (see below), whose sum is σ = 10263395006368. Its totient is φ = 4398597859824.

The previous prime is 7147721522239. The next prime is 7147721522303. The reversal of 7147721522253 is 3522251277417.

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

It is not a de Polignac number, because 7147721522253 - 2⁹ = 7147721521741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7147721522203) 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, 91637455375 + ... + 91637455452.

It is an arithmetic number, because the mean of its divisors is an integer number (1282924375796).

Almost surely, 2^{7147721522253} is an apocalyptic number.

It is an amenable number.

7147721522253 is a deficient number, since it is larger than the sum of its proper divisors (3115673484115).

7147721522253 is a wasteful number, since it uses less digits than its factorization.

7147721522253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183274910843.

The product of its digits is 1646400, while the sum is 48.

The spelling of 7147721522253 in words is "seven trillion, one hundred forty-seven billion, seven hundred twenty-one million, five hundred twenty-two thousand, two hundred fifty-three".