987776664211 has 8 divisors (see below), whose sum is σ = 988445042000. Its totient is φ = 987108392160.

The previous prime is 987776664197. The next prime is 987776664227. The reversal of 987776664211 is 112466677789.

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 987776664211 - 2²⁵ = 987743109779 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (987776667211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28915201 + ... + 28949341.

It is an arithmetic number, because the mean of its divisors is an integer number (123555630250).

Almost surely, 2^987776664211 is an apocalyptic number.

987776664211 is a deficient number, since it is larger than the sum of its proper divisors (668377789).

987776664211 is a wasteful number, since it uses less digits than its factorization.

987776664211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52869.

The product of its digits is 42674688, while the sum is 64.

The spelling of 987776664211 in words is "nine hundred eighty-seven billion, seven hundred seventy-six million, six hundred sixty-four thousand, two hundred eleven".