8126357761 has 2 divisors, whose sum is σ = 8126357762. Its totient is φ = 8126357760.

The previous prime is 8126357711. The next prime is 8126357773. The reversal of 8126357761 is 1677536218.

8126357761 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7705328400 + 421029361 = 87780^2 + 20519^2 .

It is a cyclic number.

It is not a de Polignac number, because 8126357761 - 2⁷ = 8126357633 is a prime.

It is not a weakly prime, because it can be changed into another prime (8126357711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063178880 + 4063178881.

It is an arithmetic number, because the mean of its divisors is an integer number (4063178881).

Almost surely, 2^8126357761 is an apocalyptic number.

It is an amenable number.

8126357761 is a deficient number, since it is larger than the sum of its proper divisors (1).

8126357761 is an equidigital number, since it uses as much as digits as its factorization.

8126357761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 8126357761 is about 90146.3130749117. The cubic root of 8126357761 is about 2010.4748563317.

The spelling of 8126357761 in words is "eight billion, one hundred twenty-six million, three hundred fifty-seven thousand, seven hundred sixty-one".