689231101132985 has 32 divisors (see below), whose sum is σ = 835417135507200. Its totient is φ = 545854416307200.

The previous prime is 689231101132979. The next prime is 689231101132999. The reversal of 689231101132985 is 589231101132986.

It is not a de Polignac number, because 689231101132985 - 2¹⁰ = 689231101131961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720263045 + ... + 721219325.

It is an arithmetic number, because the mean of its divisors is an integer number (26106785484600).

Almost surely, 2^{689231101132985} is an apocalyptic number.

It is an amenable number.

689231101132985 is a deficient number, since it is larger than the sum of its proper divisors (146186034374215).

689231101132985 is a wasteful number, since it uses less digits than its factorization.

689231101132985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960129.

The product of its (nonzero) digits is 5598720, while the sum is 59.

Subtracting from 689231101132985 its reverse (589231101132986), we obtain a palindrome (99999999999999).

The spelling of 689231101132985 in words is "six hundred eighty-nine trillion, two hundred thirty-one billion, one hundred one million, one hundred thirty-two thousand, nine hundred eighty-five".