2819199481 has 4 divisors (see below), whose sum is σ = 3221942272. Its totient is φ = 2416456692.

The previous prime is 2819199473. The next prime is 2819199521. The reversal of 2819199481 is 1849919182.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1849919182 = 2 ⋅924959591.

It is a cyclic number.

It is not a de Polignac number, because 2819199481 - 2³ = 2819199473 is a prime.

It is a super-2 number, since 2×2819199481² = 15895771427341338722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2819199431) 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, 201371385 + ... + 201371398.

It is an arithmetic number, because the mean of its divisors is an integer number (805485568).

Almost surely, 2^2819199481 is an apocalyptic number.

It is an amenable number.

2819199481 is a deficient number, since it is larger than the sum of its proper divisors (402742791).

2819199481 is an equidigital number, since it uses as much as digits as its factorization.

2819199481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402742790.

The product of its digits is 373248, while the sum is 52.

The square root of 2819199481 is about 53096.1343319832. The cubic root of 2819199481 is about 1412.6739462184.

The spelling of 2819199481 in words is "two billion, eight hundred nineteen million, one hundred ninety-nine thousand, four hundred eighty-one".