2681702489 has 2 divisors, whose sum is σ = 2681702490. Its totient is φ = 2681702488.

The previous prime is 2681702477. The next prime is 2681702509. The reversal of 2681702489 is 9842071862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1957177600 + 724524889 = 44240^2 + 26917^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681702489 - 2²⁴ = 2664925273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2681702459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340851244 + 1340851245.

It is an arithmetic number, because the mean of its divisors is an integer number (1340851245).

Almost surely, 2^2681702489 is an apocalyptic number.

It is an amenable number.

2681702489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681702489 is an equidigital number, since it uses as much as digits as its factorization.

2681702489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 2681702489 is about 51785.1570336520. The cubic root of 2681702489 is about 1389.3239797120.

The spelling of 2681702489 in words is "two billion, six hundred eighty-one million, seven hundred two thousand, four hundred eighty-nine".