2198781513 has 24 divisors (see below), whose sum is σ = 3365421696. Its totient is φ = 1378569600.

The previous prime is 2198781511. The next prime is 2198781523. The reversal of 2198781513 is 3151878912.

It is not a de Polignac number, because 2198781513 - 2¹ = 2198781511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2198781511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226428 + ... + 235938.

It is an arithmetic number, because the mean of its divisors is an integer number (140225904).

Almost surely, 2^2198781513 is an apocalyptic number.

It is an amenable number.

2198781513 is a deficient number, since it is larger than the sum of its proper divisors (1166640183).

2198781513 is a wasteful number, since it uses less digits than its factorization.

2198781513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11045 (or 11042 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 2198781513 is about 46891.1666841421. The cubic root of 2198781513 is about 1300.3512883004.

The spelling of 2198781513 in words is "two billion, one hundred ninety-eight million, seven hundred eighty-one thousand, five hundred thirteen".