3198993465 has 16 divisors (see below), whose sum is σ = 5119704000. Its totient is φ = 1705691712.

The previous prime is 3198993449. The next prime is 3198993521. The reversal of 3198993465 is 5643998913.

It is not a de Polignac number, because 3198993465 - 2⁴ = 3198993449 is a prime.

It is a super-2 number, since 2×3198993465² = 20467118378225412450, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38011 + ... + 88559.

It is an arithmetic number, because the mean of its divisors is an integer number (319981500).

Almost surely, 2^3198993465 is an apocalyptic number.

It is an amenable number.

3198993465 is a deficient number, since it is larger than the sum of its proper divisors (1920710535).

3198993465 is a wasteful number, since it uses less digits than its factorization.

3198993465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54776.

The product of its digits is 6298560, while the sum is 57.

The square root of 3198993465 is about 56559.6451986750. The cubic root of 3198993465 is about 1473.4580788104.

The spelling of 3198993465 in words is "three billion, one hundred ninety-eight million, nine hundred ninety-three thousand, four hundred sixty-five".