689796697986 has 96 divisors (see below), whose sum is σ = 1759983189120. Its totient is φ = 193046515200.

The previous prime is 689796697981. The next prime is 689796698099.

It is a happy number.

689796697986 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 689796697896 and 689796697905.

It is not an unprimeable number, because it can be changed into a prime (689796697981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2479495 + ... + 2743626.

It is an arithmetic number, because the mean of its divisors is an integer number (18333158220).

Almost surely, 2^689796697986 is an apocalyptic number.

689796697986 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

689796697986 is an abundant number, since it is smaller than the sum of its proper divisors (1070186491134).

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

689796697986 is a wasteful number, since it uses less digits than its factorization.

689796697986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223192 (or 5223189 counting only the distinct ones).

The product of its digits is 26665583616, while the sum is 90.

The spelling of 689796697986 in words is "six hundred eighty-nine billion, seven hundred ninety-six million, six hundred ninety-seven thousand, nine hundred eighty-six".