12153985487 has 8 divisors (see below), whose sum is σ = 13890960000. Its totient is φ = 10417183704.

The previous prime is 12153985469. The next prime is 12153985507. The reversal of 12153985487 is 78458935121.

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 12153985487 - 2²⁶ = 12086876623 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 (12153987487) 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, 195764 + ... + 250262.

It is an arithmetic number, because the mean of its divisors is an integer number (1736370000).

Almost surely, 2^12153985487 is an apocalyptic number.

12153985487 is a deficient number, since it is larger than the sum of its proper divisors (1736974513).

12153985487 is an equidigital number, since it uses as much as digits as its factorization.

12153985487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86365.

The product of its digits is 2419200, while the sum is 53.

The spelling of 12153985487 in words is "twelve billion, one hundred fifty-three million, nine hundred eighty-five thousand, four hundred eighty-seven".