13442521407 has 8 divisors (see below), whose sum is σ = 20483842176. Its totient is φ = 7681440792.

The previous prime is 13442521381. The next prime is 13442521423. The reversal of 13442521407 is 70412524431.

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

It is not a de Polignac number, because 13442521407 - 2⁶ = 13442521343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442521427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320060013 + ... + 320060054.

It is an arithmetic number, because the mean of its divisors is an integer number (2560480272).

Almost surely, 2^13442521407 is an apocalyptic number.

13442521407 is a deficient number, since it is larger than the sum of its proper divisors (7041320769).

13442521407 is an equidigital number, since it uses as much as digits as its factorization.

13442521407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640120077.

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 13442521407 in words is "thirteen billion, four hundred forty-two million, five hundred twenty-one thousand, four hundred seven".