13402668005 has 8 divisors (see below), whose sum is σ = 16087874712. Its totient is φ = 10719019008.

The previous prime is 13402667989. The next prime is 13402668023. The reversal of 13402668005 is 50086620431.

It can be written as a sum of positive squares in 4 ways, for example, as 87123556 + 13315544449 = 9334^2 + 115393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13402668005 - 2⁴ = 13402667989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370412 + ... + 404981.

It is an arithmetic number, because the mean of its divisors is an integer number (2010984339).

Almost surely, 2^13402668005 is an apocalyptic number.

It is an amenable number.

13402668005 is a deficient number, since it is larger than the sum of its proper divisors (2685206707).

13402668005 is an equidigital number, since it uses as much as digits as its factorization.

13402668005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778855.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 13402668005 in words is "thirteen billion, four hundred two million, six hundred sixty-eight thousand, five".