689036236452 has 36 divisors (see below), whose sum is σ = 1741843224576. Its totient is φ = 229663878960.

The previous prime is 689036236433. The next prime is 689036236453. The reversal of 689036236452 is 254632630986.

It is a happy number.

689036236452 is a `hidden beast` number, since 6 + 8 + 9 + 0 + 3 + 623 + 6 + 4 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (689036236453) 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 11 ways as a sum of consecutive naturals, for example, 48324 + ... + 1174907.

It is an arithmetic number, because the mean of its divisors is an integer number (48384534016).

Almost surely, 2^689036236452 is an apocalyptic number.

It is an amenable number.

689036236452 is an abundant number, since it is smaller than the sum of its proper divisors (1052806988124).

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

689036236452 is a wasteful number, since it uses less digits than its factorization.

689036236452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238888 (or 1238883 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 689036236452 in words is "six hundred eighty-nine billion, thirty-six million, two hundred thirty-six thousand, four hundred fifty-two".