8791340220029 has 2 divisors, whose sum is σ = 8791340220030. Its totient is φ = 8791340220028.

The previous prime is 8791340220023. The next prime is 8791340220049. The reversal of 8791340220029 is 9200220431978.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8289637163929 + 501703056100 = 2879173^2 + 708310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8791340220029 is a prime.

It is a super-2 number, since 2×8791340220029² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8791340220023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4395670110014 + 4395670110015.

It is an arithmetic number, because the mean of its divisors is an integer number (4395670110015).

Almost surely, 2^{8791340220029} is an apocalyptic number.

It is an amenable number.

8791340220029 is a deficient number, since it is larger than the sum of its proper divisors (1).

8791340220029 is an equidigital number, since it uses as much as digits as its factorization.

8791340220029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 8791340220029 in words is "eight trillion, seven hundred ninety-one billion, three hundred forty million, two hundred twenty thousand, twenty-nine".