987489190205 has 16 divisors (see below), whose sum is σ = 1362896826240. Its totient is φ = 672822476352.

The previous prime is 987489190199. The next prime is 987489190211. The reversal of 987489190205 is 502091984789.

It is an interprime number because it is at equal distance from previous prime (987489190199) and next prime (987489190211).

It is a cyclic number.

It is not a de Polignac number, because 987489190205 - 2¹² = 987489186109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89847935 + ... + 89858924.

It is an arithmetic number, because the mean of its divisors is an integer number (85181051640).

Almost surely, 2^987489190205 is an apocalyptic number.

It is an amenable number.

987489190205 is a deficient number, since it is larger than the sum of its proper divisors (375407636035).

987489190205 is a wasteful number, since it uses less digits than its factorization.

987489190205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179707028.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 987489190205 in words is "nine hundred eighty-seven billion, four hundred eighty-nine million, one hundred ninety thousand, two hundred five".