2649212677 has 2 divisors, whose sum is σ = 2649212678. Its totient is φ = 2649212676.

The previous prime is 2649212641. The next prime is 2649212707. The reversal of 2649212677 is 7762129462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1356522561 + 1292690116 = 36831^2 + 35954^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649212677 - 2⁷ = 2649212549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649216677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324606338 + 1324606339.

It is an arithmetic number, because the mean of its divisors is an integer number (1324606339).

Almost surely, 2^2649212677 is an apocalyptic number.

It is an amenable number.

2649212677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649212677 is an equidigital number, since it uses as much as digits as its factorization.

2649212677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 2649212677 is about 51470.5029798622. The cubic root of 2649212677 is about 1383.6904436269.

The spelling of 2649212677 in words is "two billion, six hundred forty-nine million, two hundred twelve thousand, six hundred seventy-seven".