3198654568913 has 4 divisors (see below), whose sum is σ = 3226961246628. Its totient is φ = 3170347891200.

The previous prime is 3198654568903. The next prime is 3198654568933.

3198654568913 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 713166738064 + 2485487830849 = 844492^2 + 1576543^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198654568913 - 2⁴ = 3198654568897 is a prime.

It is a super-4 number, since 4×3198654568913⁴ (a number of 51 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3198654568903) 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, 14153338688 + ... + 14153338913.

It is an arithmetic number, because the mean of its divisors is an integer number (806740311657).

Almost surely, 2^{3198654568913} is an apocalyptic number.

It is an amenable number.

3198654568913 is a deficient number, since it is larger than the sum of its proper divisors (28306677715).

3198654568913 is a wasteful number, since it uses less digits than its factorization.

3198654568913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28306677714.

The product of its digits is 167961600, while the sum is 68.

The spelling of 3198654568913 in words is "three trillion, one hundred ninety-eight billion, six hundred fifty-four million, five hundred sixty-eight thousand, nine hundred thirteen".