13478501697385 has 8 divisors (see below), whose sum is σ = 16695950489856. Its totient is φ = 10434969055920.

The previous prime is 13478501697329. The next prime is 13478501697389. The reversal of 13478501697385 is 58379610587431.

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

It is not a de Polignac number, because 13478501697385 - 2⁷ = 13478501697257 is a prime.

It is a super-2 number, since 2×13478501697385² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13478501697385.

It is not an unprimeable number, because it can be changed into a prime (13478501697389) 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, 43479037579 + ... + 43479037888.

It is an arithmetic number, because the mean of its divisors is an integer number (2086993811232).

Almost surely, 2^{13478501697385} is an apocalyptic number.

It is an amenable number.

13478501697385 is a deficient number, since it is larger than the sum of its proper divisors (3217448792471).

13478501697385 is an equidigital number, since it uses as much as digits as its factorization.

13478501697385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86958075503.

The product of its (nonzero) digits is 152409600, while the sum is 67.

The spelling of 13478501697385 in words is "thirteen trillion, four hundred seventy-eight billion, five hundred one million, six hundred ninety-seven thousand, three hundred eighty-five".