2162120677 has 2 divisors, whose sum is σ = 2162120678. Its totient is φ = 2162120676.

The previous prime is 2162120669. The next prime is 2162120687. The reversal of 2162120677 is 7760212612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1555040356 + 607080321 = 39434^2 + 24639^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162120677 - 2³ = 2162120669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162120687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081060338 + 1081060339.

It is an arithmetic number, because the mean of its divisors is an integer number (1081060339).

Almost surely, 2^2162120677 is an apocalyptic number.

It is an amenable number.

2162120677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162120677 is an equidigital number, since it uses as much as digits as its factorization.

2162120677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2162120677 is about 46498.6094093146. The cubic root of 2162120677 is about 1293.0837182490.

The spelling of 2162120677 in words is "two billion, one hundred sixty-two million, one hundred twenty thousand, six hundred seventy-seven".