68209856462 has 12 divisors (see below), whose sum is σ = 112461705888. Its totient is φ = 31004480100.

The previous prime is 68209856431. The next prime is 68209856467. The reversal of 68209856462 is 26465890286.

It is a junction number, because it is equal to n+sod(n) for n = 68209856398 and 68209856407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68209856467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140929214 + ... + 140929697.

It is an arithmetic number, because the mean of its divisors is an integer number (9371808824).

Almost surely, 2^68209856462 is an apocalyptic number.

68209856462 is a deficient number, since it is larger than the sum of its proper divisors (44251849426).

68209856462 is a wasteful number, since it uses less digits than its factorization.

68209856462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281858935 (or 281858924 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 68209856462 in words is "sixty-eight billion, two hundred nine million, eight hundred fifty-six thousand, four hundred sixty-two".