689496694986 has 16 divisors (see below), whose sum is σ = 1504356425568. Its totient is φ = 208938392400.

The previous prime is 689496694981. The next prime is 689496695033.

689496694986 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 689496694899 and 689496694908.

It is not an unprimeable number, because it can be changed into a prime (689496694981) 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, 5223459745 + ... + 5223459876.

It is an arithmetic number, because the mean of its divisors is an integer number (94022276598).

Almost surely, 2^689496694986 is an apocalyptic number.

689496694986 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

689496694986 is an abundant number, since it is smaller than the sum of its proper divisors (814859730582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689496694986 is a wasteful number, since it uses less digits than its factorization.

689496694986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10446919637.

The product of its digits is 8707129344, while the sum is 84.

The spelling of 689496694986 in words is "six hundred eighty-nine billion, four hundred ninety-six million, six hundred ninety-four thousand, nine hundred eighty-six".