68423761629008 has 20 divisors (see below), whose sum is σ = 133744233187668. Its totient is φ = 33909120806400.

The previous prime is 68423761628939. The next prime is 68423761629019. The reversal of 68423761629008 is 80092616732486.

It can be written as a sum of positive squares in 2 ways, for example, as 32042935779904 + 36380825849104 = 5660648^2 + 6031652^2 .

It is a super-2 number, since 2×68423761629008² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18922498643 + ... + 18922502258.

Almost surely, 2^{68423761629008} is an apocalyptic number.

It is an amenable number.

68423761629008 is a deficient number, since it is larger than the sum of its proper divisors (65320471558660).

68423761629008 is a wasteful number, since it uses less digits than its factorization.

68423761629008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37845001022 (or 37845001016 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 62.

The spelling of 68423761629008 in words is "sixty-eight trillion, four hundred twenty-three billion, seven hundred sixty-one million, six hundred twenty-nine thousand, eight".