8741790988221 has 4 divisors (see below), whose sum is σ = 11655721317632. Its totient is φ = 5827860658812.

The previous prime is 8741790988199. The next prime is 8741790988243. The reversal of 8741790988221 is 1228890971478.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (8741790988199) and next prime (8741790988243).

It is not a de Polignac number, because 8741790988221 - 2⁷ = 8741790988093 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 (8741790984221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456965164701 + ... + 1456965164706.

It is an arithmetic number, because the mean of its divisors is an integer number (2913930329408).

Almost surely, 2^{8741790988221} is an apocalyptic number.

It is an amenable number.

8741790988221 is a deficient number, since it is larger than the sum of its proper divisors (2913930329411).

8741790988221 is a wasteful number, since it uses less digits than its factorization.

8741790988221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913930329410.

The product of its (nonzero) digits is 32514048, while the sum is 66.

The spelling of 8741790988221 in words is "eight trillion, seven hundred forty-one billion, seven hundred ninety million, nine hundred eighty-eight thousand, two hundred twenty-one".