8987117951 has 8 divisors (see below), whose sum is σ = 10625164320. Its totient is φ = 7437614688.

The previous prime is 8987117941. The next prime is 8987117989. The reversal of 8987117951 is 1597117898.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8987117951 - 2¹⁰ = 8987116927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8987117941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22135556 + ... + 22135961.

It is an arithmetic number, because the mean of its divisors is an integer number (1328145540).

Almost surely, 2^8987117951 is an apocalyptic number.

8987117951 is a deficient number, since it is larger than the sum of its proper divisors (1638046369).

8987117951 is a wasteful number, since it uses less digits than its factorization.

8987117951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44271553.

The product of its digits is 1270080, while the sum is 56.

The square root of 8987117951 is about 94800.4111330747. The cubic root of 8987117951 is about 2079.0909142925.

The spelling of 8987117951 in words is "eight billion, nine hundred eighty-seven million, one hundred seventeen thousand, nine hundred fifty-one".