13551731026 has 4 divisors (see below), whose sum is σ = 20327596542. Its totient is φ = 6775865512.

The previous prime is 13551730993. The next prime is 13551731051. The reversal of 13551731026 is 62013715531.

13551731026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 8117829801 + 5433901225 = 90099^2 + 73715^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13551730982 and 13551731000.

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 as a sum of consecutive naturals, namely, 3387932755 + ... + 3387932758.

Almost surely, 2^13551731026 is an apocalyptic number.

13551731026 is a deficient number, since it is larger than the sum of its proper divisors (6775865516).

13551731026 is an equidigital number, since it uses as much as digits as its factorization.

13551731026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775865515.

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 13551731026 in words is "thirteen billion, five hundred fifty-one million, seven hundred thirty-one thousand, twenty-six".