2126180677 has 2 divisors, whose sum is σ = 2126180678. Its totient is φ = 2126180676.

The previous prime is 2126180657. The next prime is 2126180711. The reversal of 2126180677 is 7760816212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1950193921 + 175986756 = 44161^2 + 13266^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126180677 - 2⁷ = 2126180549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126180657) 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, 1063090338 + 1063090339.

It is an arithmetic number, because the mean of its divisors is an integer number (1063090339).

Almost surely, 2^2126180677 is an apocalyptic number.

It is an amenable number.

2126180677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126180677 is an equidigital number, since it uses as much as digits as its factorization.

2126180677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2126180677 is about 46110.5267482383. The cubic root of 2126180677 is about 1285.8788573648.

Adding to 2126180677 its reverse (7760816212), we get a palindrome (9886996889).

The spelling of 2126180677 in words is "two billion, one hundred twenty-six million, one hundred eighty thousand, six hundred seventy-seven".