2130549668977 has 2 divisors, whose sum is σ = 2130549668978. Its totient is φ = 2130549668976.

The previous prime is 2130549668971. The next prime is 2130549669011. The reversal of 2130549668977 is 7798669450312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1395613812321 + 734935856656 = 1181361^2 + 857284^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130549668977 - 2²⁷ = 2130415451249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2130549668971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065274834488 + 1065274834489.

It is an arithmetic number, because the mean of its divisors is an integer number (1065274834489).

It is a 1-persistent number, because it is pandigital, but 2⋅2130549668977 = 4261099337954 is not.

Almost surely, 2^{2130549668977} is an apocalyptic number.

It is an amenable number.

2130549668977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130549668977 is an equidigital number, since it uses as much as digits as its factorization.

2130549668977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137168640, while the sum is 67.

The spelling of 2130549668977 in words is "two trillion, one hundred thirty billion, five hundred forty-nine million, six hundred sixty-eight thousand, nine hundred seventy-seven".