13043388880426 has 4 divisors (see below), whose sum is σ = 19565083320642. Its totient is φ = 6521694440212.

The previous prime is 13043388880399. The next prime is 13043388880439. The reversal of 13043388880426 is 62408888334031.

It is a happy number.

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., 12083625774801 + 959763105625 = 3476151^2 + 979675^2 .

It is a super-3 number, since 3×13043388880426³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260847220105 + ... + 3260847220108.

Almost surely, 2^{13043388880426} is an apocalyptic number.

13043388880426 is a deficient number, since it is larger than the sum of its proper divisors (6521694440216).

13043388880426 is an equidigital number, since it uses as much as digits as its factorization.

13043388880426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6521694440215.

The product of its (nonzero) digits is 21233664, while the sum is 58.

The spelling of 13043388880426 in words is "thirteen trillion, forty-three billion, three hundred eighty-eight million, eight hundred eighty thousand, four hundred twenty-six".