7798941012221 has 8 divisors (see below), whose sum is σ = 8274119160384. Its totient is φ = 7325586965440.

The previous prime is 7798941012217. The next prime is 7798941012241. The reversal of 7798941012221 is 1222101498977.

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

It is not a de Polignac number, because 7798941012221 - 2² = 7798941012217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7798941012241) 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, 456016535 + ... + 456033636.

It is an arithmetic number, because the mean of its divisors is an integer number (1034264895048).

Almost surely, 2^{7798941012221} is an apocalyptic number.

It is an amenable number.

7798941012221 is a deficient number, since it is larger than the sum of its proper divisors (475178148163).

7798941012221 is a wasteful number, since it uses less digits than its factorization.

7798941012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912050691.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 7798941012221 in words is "seven trillion, seven hundred ninety-eight billion, nine hundred forty-one million, twelve thousand, two hundred twenty-one".