13485909487 has 4 divisors (see below), whose sum is σ = 13486178520. Its totient is φ = 13485640456.

The previous prime is 13485909467. The next prime is 13485909491. The reversal of 13485909487 is 78490958431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13485909487 - 2²³ = 13477520879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13485909457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34573 + ... + 167830.

It is an arithmetic number, because the mean of its divisors is an integer number (3371544630).

Almost surely, 2^13485909487 is an apocalyptic number.

13485909487 is a deficient number, since it is larger than the sum of its proper divisors (269033).

13485909487 is an equidigital number, since it uses as much as digits as its factorization.

13485909487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269032.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 13485909487 in words is "thirteen billion, four hundred eighty-five million, nine hundred nine thousand, four hundred eighty-seven".