689145612462 has 12 divisors (see below), whose sum is σ = 1493148827040. Its totient is φ = 229715204148.

The previous prime is 689145612427. The next prime is 689145612473. The reversal of 689145612462 is 264216541986.

It is a happy number.

689145612462 is a `hidden beast` number, since 6 + 8 + 9 + 1 + 456 + 124 + 62 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 689145612399 and 689145612408.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19142933662 + ... + 19142933697.

It is an arithmetic number, because the mean of its divisors is an integer number (124429068920).

Almost surely, 2^689145612462 is an apocalyptic number.

689145612462 is an abundant number, since it is smaller than the sum of its proper divisors (804003214578).

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

689145612462 is a wasteful number, since it uses less digits than its factorization.

689145612462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38285867367 (or 38285867364 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 689145612462 in words is "six hundred eighty-nine billion, one hundred forty-five million, six hundred twelve thousand, four hundred sixty-two".