9875221108653 has 4 divisors (see below), whose sum is σ = 13166961478208. Its totient is φ = 6583480739100.

The previous prime is 9875221108631. The next prime is 9875221108663. The reversal of 9875221108653 is 3568011225789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9875221108653 - 2¹⁶ = 9875221043117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9875221108593 and 9875221108602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875221108663) 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, 1645870184773 + ... + 1645870184778.

It is an arithmetic number, because the mean of its divisors is an integer number (3291740369552).

Almost surely, 2^{9875221108653} is an apocalyptic number.

It is an amenable number.

9875221108653 is a deficient number, since it is larger than the sum of its proper divisors (3291740369555).

9875221108653 is a wasteful number, since it uses less digits than its factorization.

9875221108653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291740369554.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 9875221108653 in words is "nine trillion, eight hundred seventy-five billion, two hundred twenty-one million, one hundred eight thousand, six hundred fifty-three".