13286815846 has 4 divisors (see below), whose sum is σ = 19930223772. Its totient is φ = 6643407922.

The previous prime is 13286815813. The next prime is 13286815859. The reversal of 13286815846 is 64851868231.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13286815793 and 13286815802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3321703960 + ... + 3321703963.

It is an arithmetic number, because the mean of its divisors is an integer number (4982555943).

Almost surely, 2^13286815846 is an apocalyptic number.

13286815846 is a deficient number, since it is larger than the sum of its proper divisors (6643407926).

13286815846 is an equidigital number, since it uses as much as digits as its factorization.

13286815846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643407925.

The product of its digits is 2211840, while the sum is 52.

The spelling of 13286815846 in words is "thirteen billion, two hundred eighty-six million, eight hundred fifteen thousand, eight hundred forty-six".