15725471489 has 8 divisors (see below), whose sum is σ = 19354426560. Its totient is φ = 12442131216.

The previous prime is 15725471483. The next prime is 15725471501. The reversal of 15725471489 is 98417452751.

It is a happy number.

15725471489 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 15725471489 - 2⁸ = 15725471233 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15725471489.

It is not an unprimeable number, because it can be changed into a prime (15725471483) 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, 86403599 + ... + 86403780.

It is an arithmetic number, because the mean of its divisors is an integer number (2419303320).

Almost surely, 2^15725471489 is an apocalyptic number.

It is an amenable number.

15725471489 is a deficient number, since it is larger than the sum of its proper divisors (3628955071).

15725471489 is a wasteful number, since it uses less digits than its factorization.

15725471489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172807399.

The product of its digits is 2822400, while the sum is 53.

The spelling of 15725471489 in words is "fifteen billion, seven hundred twenty-five million, four hundred seventy-one thousand, four hundred eighty-nine".