2757686213 has 2 divisors, whose sum is σ = 2757686214. Its totient is φ = 2757686212.

The previous prime is 2757686171. The next prime is 2757686219. The reversal of 2757686213 is 3126867572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2467903684 + 289782529 = 49678^2 + 17023^2 .

It is a cyclic number.

It is not a de Polignac number, because 2757686213 - 2⁶ = 2757686149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2757686219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378843106 + 1378843107.

It is an arithmetic number, because the mean of its divisors is an integer number (1378843107).

Almost surely, 2^2757686213 is an apocalyptic number.

It is an amenable number.

2757686213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2757686213 is an equidigital number, since it uses as much as digits as its factorization.

2757686213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 2757686213 is about 52513.6764376672. The cubic root of 2757686213 is about 1402.3237281734.

The spelling of 2757686213 in words is "two billion, seven hundred fifty-seven million, six hundred eighty-six thousand, two hundred thirteen".