8051117761 has 2 divisors, whose sum is σ = 8051117762. Its totient is φ = 8051117760.

The previous prime is 8051117743. The next prime is 8051117783. The reversal of 8051117761 is 1677111508.

8051117761 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7564650625 + 486467136 = 86975^2 + 22056^2 .

It is a cyclic number.

It is not a de Polignac number, because 8051117761 - 2¹¹ = 8051115713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8051117761.

It is not a weakly prime, because it can be changed into another prime (8051117861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4025558880 + 4025558881.

It is an arithmetic number, because the mean of its divisors is an integer number (4025558881).

Almost surely, 2^8051117761 is an apocalyptic number.

It is an amenable number.

8051117761 is a deficient number, since it is larger than the sum of its proper divisors (1).

8051117761 is an equidigital number, since it uses as much as digits as its factorization.

8051117761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 37.

The square root of 8051117761 is about 89728.0210469394. The cubic root of 8051117761 is about 2004.2507724827.

The spelling of 8051117761 in words is "eight billion, fifty-one million, one hundred seventeen thousand, seven hundred sixty-one".