689351697434 has 32 divisors (see below), whose sum is σ = 1101179876160. Its totient is φ = 322738214400.

The previous prime is 689351697421. The next prime is 689351697469. The reversal of 689351697434 is 434796153986.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813674 + ... + 1428554.

It is an arithmetic number, because the mean of its divisors is an integer number (34411871130).

Almost surely, 2^689351697434 is an apocalyptic number.

689351697434 is a deficient number, since it is larger than the sum of its proper divisors (411828178726).

689351697434 is a wasteful number, since it uses less digits than its factorization.

689351697434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615246.

The product of its digits is 117573120, while the sum is 65.

The spelling of 689351697434 in words is "six hundred eighty-nine billion, three hundred fifty-one million, six hundred ninety-seven thousand, four hundred thirty-four".