15841488487 has 24 divisors (see below), whose sum is σ = 18486091008. Its totient is φ = 13454641200.

The previous prime is 15841488473. The next prime is 15841488491. The reversal of 15841488487 is 78488414851.

It is a de Polignac number, because none of the positive numbers 2^k-15841488487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15841488407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218562 + ... + 281872.

It is an arithmetic number, because the mean of its divisors is an integer number (770253792).

Almost surely, 2^15841488487 is an apocalyptic number.

15841488487 is a deficient number, since it is larger than the sum of its proper divisors (2644602521).

15841488487 is a wasteful number, since it uses less digits than its factorization.

15841488487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63411 (or 63388 counting only the distinct ones).

The product of its digits is 9175040, while the sum is 58.

The spelling of 15841488487 in words is "fifteen billion, eight hundred forty-one million, four hundred eighty-eight thousand, four hundred eighty-seven".