6543817150987 has 8 divisors (see below), whose sum is σ = 6696143305280. Its totient is φ = 6391497558600.

The previous prime is 6543817150891. The next prime is 6543817150991. The reversal of 6543817150987 is 7890517183456.

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 6543817150987 - 2¹⁵ = 6543817118219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6543817150187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406612 + ... + 3640462.

It is an arithmetic number, because the mean of its divisors is an integer number (837017913160).

Almost surely, 2^{6543817150987} is an apocalyptic number.

6543817150987 is a deficient number, since it is larger than the sum of its proper divisors (152326154293).

6543817150987 is a wasteful number, since it uses less digits than its factorization.

6543817150987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280953.

The product of its (nonzero) digits is 50803200, while the sum is 64.

The spelling of 6543817150987 in words is "six trillion, five hundred forty-three billion, eight hundred seventeen million, one hundred fifty thousand, nine hundred eighty-seven".