13445591591 has 8 divisors (see below), whose sum is σ = 13886496768. Its totient is φ = 13005135000.

The previous prime is 13445591543. The next prime is 13445591629. The reversal of 13445591591 is 19519554431.

13445591591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13445591591 - 2¹⁰ = 13445590567 is a prime.

It is a super-2 number, since 2×13445591591² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445591521) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 50675 + ... + 171636.

It is an arithmetic number, because the mean of its divisors is an integer number (1735812096).

Almost surely, 2^13445591591 is an apocalyptic number.

13445591591 is a deficient number, since it is larger than the sum of its proper divisors (440905177).

13445591591 is a wasteful number, since it uses less digits than its factorization.

13445591591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224293.

The product of its digits is 486000, while the sum is 47.

The spelling of 13445591591 in words is "thirteen billion, four hundred forty-five million, five hundred ninety-one thousand, five hundred ninety-one".