1988516872567 has 16 divisors (see below), whose sum is σ = 2095671071232. Its totient is φ = 1883090167200.

The previous prime is 1988516872553. The next prime is 1988516872609. The reversal of 1988516872567 is 7652786158891.

It is a cyclic number.

It is not a de Polignac number, because 1988516872567 - 2¹¹ = 1988516870519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1988516872567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988516870567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47384488 + ... + 47426434.

It is an arithmetic number, because the mean of its divisors is an integer number (130979441952).

Almost surely, 2^{1988516872567} is an apocalyptic number.

1988516872567 is a deficient number, since it is larger than the sum of its proper divisors (107154198665).

1988516872567 is a wasteful number, since it uses less digits than its factorization.

1988516872567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62478.

The product of its digits is 406425600, while the sum is 73.

The spelling of 1988516872567 in words is "one trillion, nine hundred eighty-eight billion, five hundred sixteen million, eight hundred seventy-two thousand, five hundred sixty-seven".