2698946261 has 12 divisors (see below), whose sum is σ = 2968810572. Its totient is φ = 2451768000.

The previous prime is 2698946251. The next prime is 2698946269. The reversal of 2698946261 is 1626498962.

It can be written as a sum of positive squares in 2 ways, for example, as 1643086225 + 1055860036 = 40535^2 + 32494^2 .

It is not a de Polignac number, because 2698946261 - 2¹⁰ = 2698945237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698946269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171671 + ... + 186731.

It is an arithmetic number, because the mean of its divisors is an integer number (247400881).

Almost surely, 2^2698946261 is an apocalyptic number.

It is an amenable number.

2698946261 is a deficient number, since it is larger than the sum of its proper divisors (269864311).

2698946261 is a wasteful number, since it uses less digits than its factorization.

2698946261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16564 (or 16553 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 2698946261 is about 51951.3836293125. The cubic root of 2698946261 is about 1392.2954775063.

The spelling of 2698946261 in words is "two billion, six hundred ninety-eight million, nine hundred forty-six thousand, two hundred sixty-one".