2698163409 has 4 divisors (see below), whose sum is σ = 3597551216. Its totient is φ = 1798775604.

The previous prime is 2698163329. The next prime is 2698163443. The reversal of 2698163409 is 9043618962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2698163409 - 2⁹ = 2698162897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2698183409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449693899 + ... + 449693904.

It is an arithmetic number, because the mean of its divisors is an integer number (899387804).

Almost surely, 2^2698163409 is an apocalyptic number.

It is an amenable number.

2698163409 is a deficient number, since it is larger than the sum of its proper divisors (899387807).

2698163409 is an equidigital number, since it uses as much as digits as its factorization.

2698163409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899387806.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 2698163409 is about 51943.8486155964. The cubic root of 2698163409 is about 1392.1608488284.

The spelling of 2698163409 in words is "two billion, six hundred ninety-eight million, one hundred sixty-three thousand, four hundred nine".