10989717336987 has 8 divisors (see below), whose sum is σ = 14654560882704. Its totient is φ = 7325676007968.

The previous prime is 10989717336971. The next prime is 10989717337007. The reversal of 10989717336987 is 78963371798901.

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

It is not a de Polignac number, because 10989717336987 - 2⁴ = 10989717336971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10989717336967) 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, 200522208 + ... + 200577005.

It is an arithmetic number, because the mean of its divisors is an integer number (1831820110338).

Almost surely, 2^{10989717336987} is an apocalyptic number.

10989717336987 is a deficient number, since it is larger than the sum of its proper divisors (3664843545717).

10989717336987 is an equidigital number, since it uses as much as digits as its factorization.

10989717336987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401108349.

The product of its (nonzero) digits is 864162432, while the sum is 78.

The spelling of 10989717336987 in words is "ten trillion, nine hundred eighty-nine billion, seven hundred seventeen million, three hundred thirty-six thousand, nine hundred eighty-seven".