689456849154 has 16 divisors (see below), whose sum is σ = 1379311465248. Its totient is φ = 229752655232.

The previous prime is 689456849119. The next prime is 689456849167. The reversal of 689456849154 is 451948654986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16551087 + ... + 16592690.

It is an arithmetic number, because the mean of its divisors is an integer number (86206966578).

Almost surely, 2^689456849154 is an apocalyptic number.

689456849154 is an abundant number, since it is smaller than the sum of its proper divisors (689854616094).

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

689456849154 is a wasteful number, since it uses less digits than its factorization.

689456849154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33147249.

The product of its digits is 298598400, while the sum is 69.

The spelling of 689456849154 in words is "six hundred eighty-nine billion, four hundred fifty-six million, eight hundred forty-nine thousand, one hundred fifty-four".