67238139512 has 32 divisors (see below), whose sum is σ = 134074995600. Its totient is φ = 31521291264.

The previous prime is 67238139499. The next prime is 67238139523. The reversal of 67238139512 is 21593183276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2265443 + ... + 2294930.

Almost surely, 2^67238139512 is an apocalyptic number.

It is an amenable number.

67238139512 is a deficient number, since it is larger than the sum of its proper divisors (66836856088).

67238139512 is a wasteful number, since it uses less digits than its factorization.

67238139512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560495 (or 4560491 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The spelling of 67238139512 in words is "sixty-seven billion, two hundred thirty-eight million, one hundred thirty-nine thousand, five hundred twelve".