1336808881 has 4 divisors (see below), whose sum is σ = 1349787712. Its totient is φ = 1323830052.

The previous prime is 1336808867. The next prime is 1336808899. The reversal of 1336808881 is 1888086331.

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: 1888086331 = 67 ⋅28180393.

It is a cyclic number.

It is not a de Polignac number, because 1336808881 - 2²⁹ = 799937969 is a prime.

It is a super-2 number, since 2×1336808881² = 3574115968640944322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1336808801) 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 3 ways as a sum of consecutive naturals, for example, 6489261 + ... + 6489466.

It is an arithmetic number, because the mean of its divisors is an integer number (337446928).

Almost surely, 2^1336808881 is an apocalyptic number.

It is an amenable number.

1336808881 is a deficient number, since it is larger than the sum of its proper divisors (12978831).

1336808881 is a wasteful number, since it uses less digits than its factorization.

1336808881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978830.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1336808881 is about 36562.3970904535. The cubic root of 1336808881 is about 1101.5979203490.

The spelling of 1336808881 in words is "one billion, three hundred thirty-six million, eight hundred eight thousand, eight hundred eighty-one".