689887053192 has 32 divisors (see below), whose sum is σ = 1728015403680. Its totient is φ = 229522648320.

The previous prime is 689887053179. The next prime is 689887053223. The reversal of 689887053192 is 291350788986.

It is a happy number.

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, 27468609 + ... + 27493712.

It is an arithmetic number, because the mean of its divisors is an integer number (54000481365).

Almost surely, 2^689887053192 is an apocalyptic number.

It is an amenable number.

689887053192 is an abundant number, since it is smaller than the sum of its proper divisors (1038128350488).

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

689887053192 is a wasteful number, since it uses less digits than its factorization.

689887053192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54962853 (or 54962849 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 689887053192 in words is "six hundred eighty-nine billion, eight hundred eighty-seven million, fifty-three thousand, one hundred ninety-two".