689906845034 has 8 divisors (see below), whose sum is σ = 1128938473728. Its totient is φ = 313594020460.

The previous prime is 689906844947. The next prime is 689906845057. The reversal of 689906845034 is 430548609986.

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

It is a super-2 number, since 2×689906845034² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15679701002 + ... + 15679701045.

It is an arithmetic number, because the mean of its divisors is an integer number (141117309216).

Almost surely, 2^689906845034 is an apocalyptic number.

689906845034 is a deficient number, since it is larger than the sum of its proper divisors (439031628694).

689906845034 is a wasteful number, since it uses less digits than its factorization.

689906845034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31359402060.

The product of its (nonzero) digits is 44789760, while the sum is 62.

The spelling of 689906845034 in words is "six hundred eighty-nine billion, nine hundred six million, eight hundred forty-five thousand, thirty-four".